Sound Complete Chapter🔥| CLASS 9th Science | NCERT covered | Prashant Kirad
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- Опубліковано 9 лют 2025
- Sound Class 9th one shot lecture🔥
Notes Link⬇️
drive.google.c...
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Class 11th Channel👇🏼
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Topics covered in the video
Class 9th Science
Class 9th one shot science
Class 10 Board strategy
class 10 best timetable
how to start class 10
class 10 revision strategy
class 10 roadmap
class 10 science strategy
#class9th #motivation #class10th #class9 #class9science #class9thscience
Prashant bhaiya, please create a one-shot lecture on class 9 science revision (all chapters from physics, biology, and chemistry) lecture focusing on key questions. Note: For the students reading this, like this comment as a vote so Prashant sir sees
Yes sir he is right
Yes sir plzz
yes sir he is right you should send a video on revision
Yes sir plz make the video ❤❤
Yes sir please
All Formulas of Electricity:
1) I = Q/t
2) Q = ne
3) V = W/Q
4) V = IR
5) R = Rho x L/A
6)Resistance in Series: Rs = R1 + R2 + R3
7)Resistance in Parallel: 1/Rp = 1/R1 + 1/R2 + 1/R3 (» Reciprocal of R1+R2+R3)
8)H = V × Q
i) H = VIt
ii) H = I²Rt
iii) H = V²t/R
9) P = W/t
i) P = VI
ii) P = I²R
iii) P = V²/R
10) E = P × t
S.I. Units:
Current ( I ) - Ampere
Charge ( Q ) - Coulomb
Time ( t ) - Second
Potential Difference or Voltage ( V ) - Volt
Resistance ( R ) - Ohm Ω
Resistivity ( Rho ) - Ohm meter
Power ( P ) - Watt
Heat = Energy = Work = Joule
Measuring Devices:
Ammeter / Milli Ammeter - for measuring current (always connected in series)
Galvanometer - for measuring small/sensitive currents (we can also get the direction of the current)
Voltmeter - for measuring volts (always connected in parallel)
Ohm Meter - Measures the resistivity
Things to remember:
electron charge = (1.6 x 10⁻¹⁹ C)
1kWh= 3.6 × 10⁶J
1Ampere = 1000mA
1 Kilowaat = 1000W
1 Horse Power = 746W
i hope this list will help you! ❤
ek free ka like dete jana
7:53
thanks it will be useful in 10th :)
:)
:)
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:)
:)
:)
:)
:)
:)
:)
:)
:)
:)
:)
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:):):):):):):)
:)
:)
Bhaiya apne revision ki achchi technique nikali
Bro baki ke chapter ke bhi dedo na❤❤
Hlo@BENGamerz-kb3lc
Our Dear Prashant Bhaiya... Please create a series of "Rapid-Revision" for all chapter of Physics, Chemistry and Biology. all these lecture should be near by 10 to 15 minutes focusing on all the key points and questions in a drive folder like how you provide us notes. I hope you will make it!
Jk
SMALL TIMESTAMPS
00:05 - Introduction
00:54 - Chapter Overview
02:18 - Sound Energy
04:36 - Vibrations
05:12 - Sound Formation
07:26 - Propagation
09:31 - Waves
11:04 - Wave Types
13:19 - Mechanical Waves
16:03 - Transverse Waves
19:39 - Pressure Areas
23:47 - Medium Requirement
25:42 - Wave Properties
32:56 - Amplitude
34:16 - Wavelength
39:20 - Speed Factors
45:07 - Calculations
50:05 - Pitch
53:29 - Reflection
56:19 - Echo
59:41 - Absorption
1:03:39 - Audible Range
1:05:48 - Ultrasound
1:12:16 - Sonar
1:18:49 - Speed Example
1:19:39 - MCQs
1:21:51 - Loudness
Much needed
SMALL TIMESTAMPS
00:05 - Introduction
00:54 - Chapter Overview
02:18 - Sound Energy
04:36 - Vibrations
05:12 - Sound Formation
07:26 - Propagation
09:31 - Waves
11:04 - Wave Types
13:19 - Mechanical Waves
16:03 - Transverse Waves
19:39 - Pressure Areas
23:47 - Medium Requirement
25:42 - Wave Properties
32:56 - Amplitude
34:16 - Wavelength
39:20 - Speed Factors
45:07 - Calculations
50:05 - Pitch
53:29 - Reflection
56:19 - Echo
59:41 - Absorption
1:03:39 - Audible Range
1:05:48 - Ultrasound
1:12:16 - Sonar
1:18:49 - Speed Example
1:19:39 - MCQs
1:21:51 - Loudness
I HAVE NOT USED ANY WEBSITE FOR THIS PLZ LIKE THE COMMENT TO THANKS ME AND RESPECT MY EFFORT GUYS !
🫡🫡🫡🫡
❤op
Ayoo, you studying or what😅
@Roastyhell15haloo
Board ki Kasam jisne subscribe nahi kiya BOARD me fail Don't take risk 💀☠️
Ase thodi naah hota hain
Aaj kal boards ninth mein bhi hone lage wah 😂
Dhamki ha 🤨🤨 bolo kya ha thuman is video per pardi karn na aia ho to paro sungiaa
What About (Subscribed)
Na karte
Timestamps
00:05 - Exploring the magic of sound in daily life.
00:54 - Chapter on Sound covers key concepts and numerical problems.
02:18 - Sound is a form of energy that creates hearing sensations.
03:00 - Sound is a form of energy that follows conservation laws.
04:36 - Vibration explained through a pendulum example.
05:12 - Sound is produced by vibrations and transmitted through particles.
06:39 - Understanding sound propagation in different environments.
07:26 - Vibrations cause air particle movement leading to sound transmission.
08:50 - A trick to complete your syllabus in one day.
09:31 - Understanding waves as energy disturbances traveling through space.
11:04 - Mechanical waves require a medium, unlike electromagnetic waves.
11:49 - Differences between mechanical waves and electromagnetic waves.
13:19 - Understanding wave types: Transverse and Longitudinal waves.
14:04 - Explaining wave formation through stretching objects.
15:20 - Understanding vibrations and motion in springs.
16:03 - Understanding transverse waves and particle movement.
17:35 - Understanding transverse and longitudinal waves in sound.
18:19 - Transverse waves demonstrate particle motion perpendicular to wave direction.
19:39 - Understanding high and low pressure areas in sound creation.
20:20 - Understanding sound and transverse waves with examples.
21:45 - Sound travels as longitudinal waves with particle vibrations.
22:27 - Importance of confidence and humor in classroom situations.
23:47 - Sound requires a medium to travel, proven through an experiment.
24:24 - Sound requires a medium to travel effectively.
25:42 - Understanding wave characteristics with a focus on frequency.
26:19 - Pendulum motion explained using movement around mean position.
27:52 - Understanding sound waves, compression, rarefaction, frequency, and pitch.
28:36 - Understanding sound pitch through examples of different voice frequencies.
29:57 - Understanding time period in sound waves.
30:44 - Time period inversely relates to frequency in motion.
32:09 - Calculating time period using frequency.
32:56 - Amplitude represents maximum displacement from the equilibrium position.
34:16 - Understanding wavelength in sound waves.
34:59 - Discussing the importance of correct calculations and understanding concepts.
36:29 - Longitudinal waves transfer compression and rarefaction.
37:16 - Understanding wavelength and its representation in meters.
38:38 - Frequency and Speed of Waves Formula Explained
39:20 - Speed depends on the medium's nature and density.
40:53 - Speed of sound increases with temperature changes.
41:29 - Temperature affects sound travel speed and lightning vs. thunder observation.
42:54 - Introduction to sound waves and their properties.
43:39 - Understanding wave frequency and speed calculation methods.
45:07 - Importance of mastering multiplication for calculations.
45:49 - Discussion on waves, their properties, and a humorous anecdote.
47:08 - Understanding amplitude, wavelength, and velocity in waves.
47:57 - Understanding sound waves and important terminology from Chapter on Sound.
49:24 - Understanding frequency, time period, and amplitude in sound waves.
50:05 - Sound pitch depends on frequency and intensity.
51:24 - सुपरसोनिक स्पीड की परिभाषा और उदाहरण
52:07 - Sonic boom occurs when supersonic objects generate shock waves.
53:29 - Incident and reflected waves lie in the same plane.
54:14 - Incident and reflected angles in sound waves are equal.
55:34 - Echo is the reflection of sound heard again.
56:19 - Echo requires open space; it can't occur in enclosed areas.
57:42 - Reverberation is sound reflection causing echoes in enclosed spaces.
58:21 - Understanding sound reflection and reverb in enclosed spaces.
59:41 - Sound absorption techniques enhance audio quality in auditoriums.
1:00:19 - Multiple reflections of sound have practical applications.
1:01:34 - Understanding sound reflection in stethoscopes and hall acoustics.
1:02:16 - Acoustic design ensures equal sound distribution in curved halls.
1:03:39 - Humans can hear sounds between 20 Hz and 20,000 Hz.
1:04:28 - Understanding audible and inaudible sound ranges
1:05:48 - Ultrasound usage in navigation and detection by animals.
1:06:28 - Ultrasound applications include cleaning electronic parts effectively.
1:07:55 - ECG and Ultrasonography for Heart Health Assessment
1:08:34 - Ultrasound benefits in medical imaging and kidney stone treatment.
1:09:57 - Sound production and speed differences explained.
1:10:43 - Understanding sound frequency and vibrations in a minute.
1:12:16 - Sonar technology is used for detection in submarines and boats.
1:13:04 - Understanding sound transmission and detection using a transmitter and detector.
1:14:36 - Understanding sonar and its formula for distance calculation.
1:15:14 - Sona's applications include depth measurement and underwater exploration.
1:16:37 - Understanding sound speed calculations in distance measurement.
1:17:25 - Understanding the reflection and distance calculations in sound propagation.
1:18:49 - Sound travels 1600 meters in 5 seconds.
1:19:39 - Understanding sound velocity and key MCQs for Class 9 Science.
1:21:08 - Sound waves cause air particles to vibrate in sync.
1:21:51 - Understanding the loudness of sound through amplitude and frequency.
bhaiya can u take my name abhay class 10 jshlin
bhaiya it took a lot of efforts
Bhai itna time h tumare ps ki 😂
😂
Kisi ke pas itna time bhi hota hai.
thanks broo so sweet of you!!
You are so sweet to waste your time
timelapse
00:05 - Exploring the magic of sound in daily life.
00:54 - Chapter on Sound covers key concepts and numerical problems.
02:18 - Sound is a form of energy that creates hearing sensations.
03:00 - Sound is a form of energy that follows conservation laws.
04:36 - Vibration explained through a pendulum example.
05:12 - Sound is produced by vibrations and transmitted through particles.
06:39 - Understanding sound propagation in different environments.
07:26 - Vibrations cause air particle movement leading to sound transmission.
08:50 - A trick to complete your syllabus in one day.
09:31 - Understanding waves as energy disturbances traveling through space.
11:04 - Mechanical waves require a medium, unlike electromagnetic waves.
11:49 - Differences between mechanical waves and electromagnetic waves.
13:19 - Understanding wave types: Transverse and Longitudinal waves.
14:04 - Explaining wave formation through stretching objects.
15:20 - Understanding vibrations and motion in springs.
16:03 - Understanding transverse waves and particle movement.
17:35 - Understanding transverse and longitudinal waves in sound.
18:19 - Transverse waves demonstrate particle motion perpendicular to wave direction.
19:39 - Understanding high and low pressure areas in sound creation.
20:20 - Understanding sound and transverse waves with examples.
21:45 - Sound travels as longitudinal waves with particle vibrations.
22:27 - Importance of confidence and humor in classroom situations.
23:47 - Sound requires a medium to travel, proven through an experiment.
24:24 - Sound requires a medium to travel effectively.
25:42 - Understanding wave characteristics with a focus on frequency.
26:19 - Pendulum motion explained using movement around mean position.
27:52 - Understanding sound waves, compression, rarefaction, frequency, and pitch.
28:36 - Understanding sound pitch through examples of different voice frequencies.
29:57 - Understanding time period in sound waves.
30:44 - Time period inversely relates to frequency in motion.
32:09 - Calculating time period using frequency.
32:56 - Amplitude represents maximum displacement from the equilibrium position.
34:16 - Understanding wavelength in sound waves.
34:59 - Discussing the importance of correct calculations and understanding concepts.
36:29 - Longitudinal waves transfer compression and rarefaction.
37:16 - Understanding wavelength and its representation in meters.
38:38 - Frequency and Speed of Waves Formula Explained
39:20 - Speed depends on the medium's nature and density.
40:53 - Speed of sound increases with temperature changes.
41:29 - Temperature affects sound travel speed and lightning vs. thunder observation.
42:54 - Introduction to sound waves and their properties.
43:39 - Understanding wave frequency and speed calculation methods.
45:07 - Importance of mastering multiplication for calculations.
45:49 - Discussion on waves, their properties, and a humorous anecdote.
47:08 - Understanding amplitude, wavelength, and velocity in waves.
47:57 - Understanding sound waves and important terminology from Chapter on Sound.
49:24 - Understanding frequency, time period, and amplitude in sound waves.
50:05 - Sound pitch depends on frequency and intensity.
51:24 - सुपरसोनिक स्पीड की परिभाषा और उदाहरण
52:07 - Sonic boom occurs when supersonic objects generate shock waves.
53:29 - Incident and reflected waves lie in the same plane.
54:14 - Incident and reflected angles in sound waves are equal.
55:34 - Echo is the reflection of sound heard again.
56:19 - Echo requires open space; it can't occur in enclosed areas.
57:42 - Reverberation is sound reflection causing echoes in enclosed spaces.
58:21 - Understanding sound reflection and reverb in enclosed spaces.
59:41 - Sound absorption techniques enhance audio quality in auditoriums.
1:00:19 - Multiple reflections of sound have practical applications.
1:01:34 - Understanding sound reflection in stethoscopes and hall acoustics.
1:02:16 - Acoustic design ensures equal sound distribution in curved halls.
1:03:39 - Humans can hear sounds between 20 Hz and 20,000 Hz.
1:04:28 - Understanding audible and inaudible sound ranges
1:05:48 - Ultrasound usage in navigation and detection by animals.
1:06:28 - Ultrasound applications include cleaning electronic parts effectively.
1:07:55 - ECG and Ultrasonography for Heart Health Assessment
1:08:34 - Ultrasound benefits in medical imaging and kidney stone treatment.
1:09:57 - Sound production and speed differences explained.
1:10:43 - Understanding sound frequency and vibrations in a minute.
1:12:16 - Sonar technology is used for detection in submarines and boats.
1:13:04 - Understanding sound transmission and detection using a transmitter and detector.
1:14:36 - Understanding sonar and its formula for distance calculation.
1:15:14 - Sona's applications include depth measurement and underwater exploration.
1:16:37 - Understanding sound speed calculations in distance measurement.
1:17:25 - Understanding the reflection and distance calculations in sound propagation.
1:18:49 - Sound travels 1600 meters in 5 seconds.
1:19:39 - Understanding sound velocity and key MCQs for Class 9 Science.
1:21:08 - Sound waves cause air particles to vibrate in sync.
1:21:51 - Understanding the loudness of sound through amplitude and frequency.
bhaiya it took a lot of efforts
abe jaa na bhai... ai se nikala hai, itni akal sabme hoti
44:07 (Small Mistake)
Frequency = 2kHz = 2000Hz
Wavelength = 0.5m
Speed= (0.5×2000)m/s
= 1000m/s ✅
Its Actually 0.5 Not 05....❤
true bhai bare diyan se dekhi hai vedio....
@siddharthkharbanda4385 Dhyan Se Toh Dekhni Hi Thi Prashant Bhaiyaa Ne Puri Shiddat Se Jo Padhaya Tha ❤️
Baat to sahi he
Yes yr
Multiply to main neend mai bhi kr leta hoon😂❤😂😂😂
Please upload all chapters Rapid revisions 😊 of class 9
Ok
Not sure
@@shreejikivani are u prashant sir
Yes plzz
Bhaiya could not make 12 videos of rapid revision 😊
Bhaiya thank you soo much for uploading
P.S.- Bhaiya pls also make a sure shot series of physics, chemistry and biology for class 9, Sure shot means questions that will 101% come in exam so that it is easy to score 95%+ marks..thank you..your efforts are highly appreciated by all students 🤗
EDIT- Everyone viewing this comment should like, so that this can reach faster..thank you
Kyu bhai tu abhi appreciate nhi krta hai kya?? 😕
Yes
"Sure shot means questions that will 101% come in exam so that it is easy to score 95%+ marks" basically u want the paper to get leaked..
I see..
00:05 - Introduction
00:54 - Chapter Overview
02:18 - Sound Energy
04:36 - Vibrations
05:12 - Sound Formation
07:26 - Propagation
09:31 - Waves
11:04 - Wave Types
13:19 - Mechanical Waves
16:03 - Transverse Waves
19:39 - Pressure Areas
23:47 - Medium Requirement
25:42 - Wave Properties
32:56 - Amplitude
34:16 - Wavelength
39:20 - Speed Factors
45:07 - Calculations
50:05 - Pitch
53:29 - Reflection
56:19 - Echo
59:41 - Absorption
1:03:39 - Audible Range
1:05:48 - Ultrasound
1:12:16 - Sonar
1:18:49 - Speed Example
1:19:39 - MCQs
1:21:51 - Loudness
I HAVE NOT USED ANY WEBSITE FOR THIS PLZ LIKE THE COMMENT TO THANKS ME AND RESPECT MY EFFORT GUYS !
Bhai
P- polite
R- rare
A- advisor
S- speaker
H- honest
A- adventurous
T- trustworthy
Those who respect prashant bhaiya like 😊
N is missing 😅
N- natakbaz buggu icher
You don't know spelling of Prashant
😅
N- naugthy
Bhai ko bhook lag rahi thi to bhai N kha gaya 😅😂
Heyyy Juniors, A senior Here. I am in class 10th right now aand will pass out after 1 month so for all those reading this, trust me once u will be out of class 9th u will love the jouney plus physics in tenth has less chapters involving numericals so dont worry u will like science of class 10 even if u dont like of class 9th. All the best and always stay motivated dont get depressed. Indeed 9th is not easy but its the base for 10th toh poori jee jaan aur mehnat laga do bcuz then 10th will become easy.
Edit - Bhai Please Bhaiya-Bhaiya Likhna band kro, didi hun bhai main 😭
❤❤❤
❤❤😮
10 m kitnemarks aye the apke
Thanku senior . ❤
❤❤❤
43:46 wavelength is 0.5m so lambda x frequency = 0.5 x 2000= 1000
sahi me mujhe laga 10,000 dekh kr ki meri hi maths kharab hai😭😭
@@divinity4653 Mujhe bhi 😂
👍
1000 hai answers
Sir ne bola ki glt mt Krna aur usi sec glt krdiya 😂
👇 VOTE FOR CLASS 9 RAPID REVESION .. ( since final exam is approaching, pls bhaiya)
Parshant bhaiya class 9th ki one shot me full science revision bhi kara do please
Haa bhaiya for finals
Haaan pls
Haannn bhaiya please 🙏🏻
Haaa😊😊
Haaààaa Bhaiya please 🙏😢
Vote for rapid revision for class 9👇🏻👇🏻
Yes
Yes
Yes
Yes
Yes
Sir pls create a sure shot (it means that the question will surely come in exam)so that we can got good marks easily❤ ... students who are seeing this comment like so that sir can see❤
Yes sir please
Yes sir pls so we can get good marks ❤😊
Bhai you want to see all one shot video of Prashant bhaiya,if you want to good score in your exam .
@@AnkitSingh-e1u8b No,sure shot means the question that sir revise will have 90% chance to come in exam
Yesss❤
Bhaiya revision of all science 😢 vote for revision
15:08 Bhaiya Teleported....And...Bhaiya is Fastest water drinker in the world💀🙏🏻🙏🏻
😂😂😂
Tujhe Kya problem hai bhai
😂😂
Usko editing kehte h dude😂😂
agar tere ko Pani Pina Hai to tu Pi le bhai
44:10 me 1000 m/s aayega 0.5 hai na ke 5 ❤
Bilkul sahi
YHI likhne aaya tha 😅
Haa bhaiya
@@Krazyeditz18 same bro
Yeah 👍
Prashant bhaiya ke liye dil se shukriya, jo apni mehnat aur dedication se pura syllabus samajhne aur complete karwane mein madad kiye. Aap jaise guru ka saath milna ek ashirwad hai! 🙏
The sky is blue
The moon is white
Prashant is our light 😂😂
44:05 It will be 1000Hz because:
0.5 × 2000
10000/10( since 0.5 is there )
1000Hz
Bhaiya but the unit of speed is m/sec
Yea true
Not hz it's m/s as we are calculating speed not frequency
1. The fundamental unit of life ❤ 2. Matter in our surrounding ❤3. Motion ❤4. Is matter around us pure ❤ 5. Tissues ❤ 6. Force and laws of motion ❤ 7. Gravitation ❤8. Atoms and molecules ❤9. Work and energy ❤10. Improvement in food resources ❤11. Structure of atom ❤12. Sound ❤
Why don't he make division in living organisms
Out of syllabus @@MohdMustaqeem-o2y
@@MohdMustaqeem-o2yit is not in new ncert
aap shrivastava ho main bhi shrivastava ho bye dost
@@hrideshkumarsrivastava456😊
All Formulas of Electricity:
1) I = Q/t
2) Q = ne
3) V = W/Q
4) V = IR
5) R = Rho x L/A
6)Resistance in Series: Rs = R1 + R2 + R3
7)Resistance in Parallel: 1/Rp = 1/R1 + 1/R2 + 1/R3 (» Reciprocal of R1+R2+R3)
8)H = V × Q
i) H = VIt
ii) H = I²Rt
iii) H = V²t/R
9) P = W/t
i) P = VI
ii) P = I²R
iii) P = V²/R
10) E = P × t
S.I. Units:
Current ( I ) - Ampere
Charge ( Q ) - Coulomb
Time ( t ) - Second
Potential Difference or Voltage ( V ) - Volt
Resistance ( R ) - Ohm Ω
Resistivity ( Rho ) - Ohm meter
Power ( P ) - Watt
Heat = Energy = Work = Joule
Measuring Devices:
Ammeter / Milli Ammeter - for measuring current (always connected in series)
Galvanometer - for measuring small/sensitive currents (we can also get the direction of the current)
Voltmeter - for measuring volts (always connected in parallel)
Ohm Meter - Measures the resistivity
Things to remember:
electron charge = (1.6 x 10⁻¹⁹ C)
1kWh= 3.6 × 10⁶J
1Ampere = 1000mA
1 Kilowaat = 1000W
1 Horse Power = 746W
i hope this list will help you! ❤
ek free ka like dete jana
Tere pucha kisi ne
Thank you .God bless you for doing such a thing
Thank u for ur efforts
Pausing at 47:57 remind me to continue by liking 😊
Go studyyyy🔪🔪🔪🔪🔪
1:11:53 this motivation is touch my heart ❤️ 💙 💜 💖 💗 💘 ❤️ 💙 💜 💖 💗 💘 ❤️ 💙 💜 💖 💗 💘 ❤️
English must learn you ❤️💘💝💖💗💓💞💕💌♥️♥️❣️💔💋👥👣👤🩸🦠🗣️🦠🦷🦷💦💨😿✨✨😾🌟🙉✨🙉😼😹🙊😹🙊☠️👽👹😈🤓🤑🤕😇😷🤠😷😖😵🤯🤯😯😰😥😨😨😟🤐🤗🥱🤐😔🤫😬😬☠️🤓🤠😈💨😈💦🦷🌟😹🤑🤠🤠🤑🦷😰🐰🐻🐯🐯🐻🐵🐽🦓👨❤️👨👬💑👫🕺🏻💏🕺🏻💏🤰💑👩❤️👩💑👨🏻🦱👴🏻👨🏻🦱🧕🏻👨🏻🎤👨🏻🏫👨🏻🎨👨🏻🌾👨🏻🎓👨🏻🔧👨🏻💼👨🏻🔧👨🏻⚖️🦹🏻♂️🧛🏻♂️🎅🏻🤽🏻♂️🪂🤽🏻♂️🪂🧜🏻♂️🏂🏻🧚🏻♂️🧚🏻♂️👼🏻🏂🏻👮🏻♂️🧛🏻♂️👷🏻♂️👨🏻🚒👮🏻♂️⛹🏻♂️👨🏻🦼🧘🏻♂️💆🏻♂️🧘🏻♂️🙍🏻♂️🙇🏻♂️🙎🏻♂️
Your English is touch my kidney
@@riyaanbhatia589 same here
😂😂@@riyaanbhatia589
@@riyaanbhatia589 💀
1:23:49 Finnish finally we done Achievement Added ❤🎉
An average minecraft player
The whole syllabus is complete🎉let's celebrate as well as thank you so much prashant Bhaiya for your guidenss
Improvement in food resources?
@RONAKBAG-w2q search kerle phale
@RONAKBAG-w2q search karke dekh kab ka complete kara diya
🌿🎀🤍💗🎀🤍💗🎀🤍💗🎀🌿
celebration!!🥳🥳 Guyz for completing physics syllabus.
Sara syllabus ho gya boi
@@GarvitMalik150bhai bio k kuch chapter nahi hua like why do we fall ill
@EDITZ-b1osyllabus se delete hai
44:05 ek chota sa correection , ye 1000 ms hoga, 0.5 lamda he😊
true
Mabhi rahi dekh raha tha ki kisi ne correction kia ki nhi
No one is appreciating him for this beautiful lecture but everyone is pointing on his mistake wow 😢😢
Yes
No one is pointing the mistake they are just correcting the mistake so that viewers won't be confused
Finally this chapter is came 🎉❤
Wait is over
Yeah 👍🙂
1:23:47 Love you Prashant bhaiya ❤️🩹 We will Miss you a
lot 🥺 Our pookie bhaiya love you 3000 💪🏾🗿
Last one shot for class 9th 😢 plz vote for all revision❤ or 9th fail
Timestamps FOR YALL 😄
00:05 - Exploring the magic of sound in daily life.
00:54 - Chapter on Sound covers key concepts and numerical problems.
02:18 - Sound is a form of energy that creates hearing sensations.
03:00 - Sound is a form of energy that follows conservation laws.
04:36 - Vibration explained through a pendulum example.
05:12 - Sound is produced by vibrations and transmitted through particles.
06:39 - Understanding sound propagation in different environments.
07:26 - Vibrations cause air particle movement leading to sound transmission.
08:50 - A trick to complete your syllabus in one day.
09:31 - Understanding waves as energy disturbances traveling through space.
11:04 - Mechanical waves require a medium, unlike electromagnetic waves.
11:49 - Differences between mechanical waves and electromagnetic waves.
13:19 - Understanding wave types: Transverse and Longitudinal waves.
14:04 - Explaining wave formation through stretching objects.
15:20 - Understanding vibrations and motion in springs.
16:03 - Understanding transverse waves and particle movement.
17:35 - Understanding transverse and longitudinal waves in sound.
18:19 - Transverse waves demonstrate particle motion perpendicular to wave direction.
19:39 - Understanding high and low pressure areas in sound creation.
20:20 - Understanding sound and transverse waves with examples.
21:45 - Sound travels as longitudinal waves with particle vibrations.
22:27 - Importance of confidence and humor in classroom situations.
23:47 - Sound requires a medium to travel, proven through an experiment.
24:24 - Sound requires a medium to travel effectively.
25:42 - Understanding wave characteristics with a focus on frequency.
26:19 - Pendulum motion explained using movement around mean position.
27:52 - Understanding sound waves, compression, rarefaction, frequency, and pitch.
28:36 - Understanding sound pitch through examples of different voice frequencies.
29:57 - Understanding time period in sound waves.
30:44 - Time period inversely relates to frequency in motion.
32:09 - Calculating time period using frequency.
32:56 - Amplitude represents maximum displacement from the equilibrium position.
34:16 - Understanding wavelength in sound waves.
34:59 - Discussing the importance of correct calculations and understanding concepts.
36:29 - Longitudinal waves transfer compression and rarefaction.
37:16 - Understanding wavelength and its representation in meters.
38:38 - Frequency and Speed of Waves Formula Explained
39:20 - Speed depends on the medium's nature and density.
40:53 - Speed of sound increases with temperature changes.
41:29 - Temperature affects sound travel speed and lightning vs. thunder observation.
42:54 - Introduction to sound waves and their properties.
43:39 - Understanding wave frequency and speed calculation methods.
45:07 - Importance of mastering multiplication for calculations.
45:49 - Discussion on waves, their properties, and a humorous anecdote.
47:08 - Understanding amplitude, wavelength, and velocity in waves.
47:57 - Understanding sound waves and important terminology from Chapter on Sound.
49:24 - Understanding frequency, time period, and amplitude in sound waves.
50:05 - Sound pitch depends on frequency and intensity.
51:24 - सुपरसोनिक स्पीड की परिभाषा और उदाहरण
52:07 - Sonic boom occurs when supersonic objects generate shock waves.
53:29 - Incident and reflected waves lie in the same plane.
54:14 - Incident and reflected angles in sound waves are equal.
55:34 - Echo is the reflection of sound heard again.
56:19 - Echo requires open space; it can't occur in enclosed areas.
57:42 - Reverberation is sound reflection causing echoes in enclosed spaces.
58:21 - Understanding sound reflection and reverb in enclosed spaces.
59:41 - Sound absorption techniques enhance audio quality in auditoriums.
1:00:19 - Multiple reflections of sound have practical applications.
1:01:34 - Understanding sound reflection in stethoscopes and hall acoustics.
1:02:16 - Acoustic design ensures equal sound distribution in curved halls.
1:03:39 - Humans can hear sounds between 20 Hz and 20,000 Hz.
1:04:28 - Understanding audible and inaudible sound ranges
1:05:48 - Ultrasound usage in navigation and detection by animals.
1:06:28 - Ultrasound applications include cleaning electronic parts effectively.
1:07:55 - ECG and Ultrasonography for Heart Health Assessment
1:08:34 - Ultrasound benefits in medical imaging and kidney stone treatment.
1:09:57 - Sound production and speed differences explained.
1:10:43 - Understanding sound frequency and vibrations in a minute.
1:12:16 - Sonar technology is used for detection in submarines and boats.
1:13:04 - Understanding sound transmission and detection using a transmitter and detector.
1:14:36 - Understanding sonar and its formula for distance calculation.
1:15:14 - Sona's applications include depth measurement and underwater exploration.
1:16:37 - Understanding sound speed calculations in distance measurement.
1:17:25 - Understanding the reflection and distance calculations in sound propagation.
1:18:49 - Sound travels 1600 meters in 5 seconds.
1:19:39 - Understanding sound velocity and key MCQs for Class 9 Science.
1:21:08 - Sound waves cause air particles to vibrate in sync.
1:21:51 - Understanding the loudness of sound through amplitude and frequency.
Watching at New year 🎉🎉 happy new year to all
Because from today onwards our new year resolution starts so all the best to all may all get good marks in exam
Happy new year, Ummid krta hu sabko 95% aaye
@TheBharatace same to you bro
Same to you guys 🎉🎉
Bhaiya, I am out of words to thank you for all the lectures you posted of class 9th's Science 🙏 God bless u bhaiya. You are the greatest❤
Battery jinda baad 🙌🫡🔋
Luvv uh battery 🤡❤️😂
Yes you are right 👍👍😊 I agree with you battery 🙌👍
@@harshindersingh12iie44 i am always right😌
Absolutely right ❤️🔥 battery
Yrr yur bigg bigg fan 😂😂
1:19:47- Our Pookie Bhaiya is Clapping for his sisters and brothers🎉🥳🥳 Yeah...🎉❤❤❤😅
9:15 cover syllabus ☠️
44:05 mistake 10000❌1000✅
You are right bro
Tum bade Tej ho rahe ho bhai
Ye
Right bro
Yes you are absolutely right bro
8:43 Prashant bhaiya method to cover syllabus in 1 day ❌ 1 minute✅
complete nhi bhai cover
Samj agya
Kya 1 min😅😅😅😅@@Akash_Shete_96k
1min❌ 1.5 hours ✅
@devilbornytBro he is saying about cover not complete
Halka ho ya bhari, ki halka ho bhari prashant bhaiya ko toh hai sabko science padhani ❤
It's funny 🤣
Bhai rhyming nahi bani
@VaishnavKumar-v4e Thik hai bhai
@@VaishnavKumar-v4ehaan
Trash rhyme lol
No one can beat our bhaiya in science 🧪
Samriddhi ma'am and rakshak sir beat prashant bhaiya
@@Solitude_in_solace_seeker that's TRUE.
@@Tigeryadav-4toh video dekh hi kyu rahe ho 😂
Controversy my kiya kro no one can beat out Prashant bhaiyaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Never @@Tigeryadav-4
49:02 I Am Going to Sleep please Remind me Tomorrow by liking 😴 💤 🛏 😪 🛌 😴 💤 Good Night 🎉🎉
Padh le subha ho gyi
@Crazy_sub Thanks AB Padhunga 🙏 😘 ❤️ 💓
Finally completed
Nahi bhai so mat kyuki pt sir ne kahan sleep later😂😂
@@Newsalerts77 You got me 🤣🤣
east or west prashant bhaiya is best when i start a jouney of 9th i suffring stuggle in science but now i am enjoying science because of you prashant bhaiya
Yess😊
44:05 Bhaiya ans 1000 m/s aana chahiye mere hisab se to
Ha 1000 hai
Hmm sir ne decimal notice nhi kiya.
. Bhool gaye 😂
sir nay thoda sa galtal kar diya. But we still got the idea and answers so just let it be
mistakes ho jatehe bhai
Teacher jab pdhati h to lagta h ki radio start kar diya ho pr Prashant bhaiya ke aane pr lagta h ki ab to chapter cover ho hi jayega 😄
Fr!🤌
Lets vote for class 9 all chapter revision
SMALL TIMESTAMPS
00:05 - Introduction
00:54 - Chapter Overview
02:18 - Sound Energy
04:36 - Vibrations
05:12 - Sound Formation
07:26 - Propagation
09:31 - Waves
11:04 - Wave Types
13:19 - Mechanical Waves
16:03 - Transverse Waves
19:39 - Pressure Areas
23:47 - Medium Requirement
25:42 - Wave Properties
32:56 - Amplitude
34:16 - Wavelength
39:20 - Speed Factors
45:07 - Calculations
50:05 - Pitch
53:29 - Reflection
56:19 - Echo
59:41 - Absorption
1:03:39 - Audible Range
1:05:48 - Ultrasound
1:12:16 - Sonar
1:18:49 - Speed Example
1:19:39 - MCQs
1:21:51 - Loudness
THANK YOU 👍🏽
One of the best study successful channel ❤❤ 1:06
😂
😅
Hii
😂😂😂
@@Mohitmunna8 yes
Science ka best teacher 🎉🎉
Me😅
Ka ❌
Ke ✅
@@BTSarmyOT7-jk7 aap bade samajhdar ho rahe ho bhai
Thank u
Right
Correct 💀☠️
Right
Exactly
Right
Prashant bhaiya you are best science teacher in the world
9 ki kasam 1 like or fail dont take risk💀
Pagal
"Happy New Year" bhaiya aap ke saath ye year bhi bahut achha jayega ❤❤
Thank you for being with us in any situation 💕❣️ thank you so much 💓❤
Love you so much 😘 😘 😘
🎉
Bhai tune 2 din phale the fundamental unit of life ki vedio pe comment Kiya tha na
@@MathurJi-j7i pta ni kya kiya tha ?
@Nexttopperskiduniya25 bola tha bhai 😅😅 mene dhekha
@Nexttopperskiduniya25 bhai tu free fire khelta hai me khelta hu aapni I'd batao
Prashant Bhaiya: Echo can't be heard in your home.
Ambani: 😂
Good video btw, very good explanation 👍
Vote for legend alto 1:12:50
Thank you for like my chat
Lord alto❤❤❤
😅
Finally science syllabus completed🎉🎉🎉🎉Class 9
Hii
@@Megha-z9u hello
What's your name
only Megha
@@Megha-z9u my name is Adarsh as same as my channel name
12:19 mera dil garden garden ho gaya😊😊☺️☺️🥰🥰
Our pookie bhaiya 😍😍
Mee tooo 😂😂🤭🙈👀
Yes❤
Me too ☺
Ak dam sahi bola
Sarama gai kyu 😂@Nexttopperskiduniya25
Whu do we fall pur lecture nikal do prashant bhaiya ❤❤❤❤❤❤😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢😢please
44:11 me answer 10,000 nahi 1,000 hai
Bhaiya sabse accha padhate hai lekin kabhi kabhi mistake ho jati hai😁😁😁
I was also wandering about that 😂
Kyuki bhaiya to neendo me bhi multiply kr lete h isiliye 😅😅😅
Haan Bhai shi me bhi
I was also confused abt this
Bhaiya, I was really waiting for your lecture. You really helped me a lot. You are the BEST. I can't express my feelings in words. You are my Best Bhaiya❤❤❤❤. 😊😊😊😊.
Sister please mujhe bata doo Prashant sir see kaise baat hogi
Sir yar aab hamare leya bhi 20 ya 40 mins ke short revision lectures lao na pls 😢😢😢
Love you prashant bhaiya😢 🎉❤❤❤
Thanks prashant bhaiya 🥰🥀🫀❤
School❌
Tuition❌
Night with prashant sir✔️,study perpose💀
night with prashant sir is wild
Correct ☝️
Purpose bruh😂🫵🏻
Happy new year all of you❤❤❤
Thank you and same to you 😊
Same to you❤❤❤
S2u 🥰
Prashant bhaiya ke 4 million hone wala hai 😢itni khushi 😢🎉🎉
Thx soooo much prashant bhaiya.
Apke vids se mujhe abhi pata chal gaya he ki notes kaise banane chaheye aur conpects bhi clear ho gaye.
Me 9th me hu aur apke vids bahud kamke he.
Shukriya ❤❤❤😊
Jisne like nahi kiya exam me fail hoga 😂
ajeeb log hai😂
Jaida bolunga to vivad ho jayega
thankyou so much sir for completing the whole syllabus ....
Finally aaj sound chapter clear hoga 😊😊😅😅😅
Happy 😂😂😂
A wonderful journey with u sir... When I first discovered this channel I thought it's a random study channel but with the first video itself it changed my perception towards you.
Such a wonderful teacher, you cleared all my doubts and now I feel confident about this subject.🎉
Because of you science has become my favourite subject 😊
Finally aagya sound 🎉🎉🎉🎉
Hi
Bords ki Kasam jisne comment like nahi kiya vo bords exam ma Fail 😂😂(don't take risk) 💀💀
😂😂
😂😂Pehla to 9 pass kar la
9th board ki thodi na hai😂
😂😂😂😂
Bhai Prashant bhaiya ne apne comments unke lectures ke review sunne ke liye kiya hai so don't pollute this section ye kaam kisi or channel pe jakar kar
1:19:55 bhaiya this question is very easy,because we are study from you ☺️😊😊😊
Thank you❤ prashant bhaiya 😊class 9mein saath nibhane ke liye... Class 10 mein bhi yese hi saath dena 😊😊😇once again thank you for teaching😊😊
At 43:50 Multiply to me nidome bhi kar deta hu 😂😂
2kwh=2000hz
Lamada= 0.5 m/s
Speed = (0.5 x 2000)=1000km
😊😊
M/s he bhai km nahi 😂
Dusro ki galti nikalna se phele khud dhek
😂😂😂@@OfficalCarcrashmaster
Wht😊
Bruh lamada ni hota 😂 lambda hota h 😅
34:52 dekh bhyi
Any one in January 2025 ? 👇🏼
Hey ?
32:54 I'll continue Tommorow
Why bro .see now 🐒
What is this@@gangadhargowdagowda6751
What
Mne bhi same time pe stop kiya tha or 😮aaj wahi se dekh rhi hu
Same I will also
15:06 editor prashant bhaiya 😂😂😂❤❤
Bhaiya's funny acting like jack bhaiya 😂😂 ❤ 35:40
Jack noob
Thank you Prashant bhaiya❤❤. Love from Assam😊😊😊.
Hello miss ?
@Plexyarmy007 hello
@@RatanDebnath-w5v miss can you help my
prashant bhaiya please create rapid revision series for class 9th
1 like = 1 vote
15:05 best transection ever 😂🎉❤
No one can beat our prashant bhaiya ..........✨✨
Aashu sir can beat him
Literally the 1% people who's reading,,,May your parents Live more than 100years with good health
rashant bhaiya, please create a one-shot lecture on class 9 science revision (all chapters from physics, biology, and chemistry) lecture focusing on key questions. Note: For the students reading this, like this comment as a vote so Prashant sir sees
Rashant bhaiya kon hai be?😅😂
Please, create video on case study of physics
Prashant bhaiya jo bacche 9 se 10 mein ja rahe hai iss sal vo kaise starting kare 10 ke acche percentage lane ke liya iss par ek video bana dijiye ❤❤
Yess bhaiyaa pleasee
I love you janu❤❤❤❤❤
Sir I from Nepal but I love this india ❤❤❤❤
Thank you bro to love our India . ❤❤❤
@@satnandanmahto8745 You are welcome in our India🇮🇳. I felt very happy after reading your comment. In fact I wanna visit Nepal 🇳🇵once.
Welcomo to our best teacher of the universe
Brooo you are indian
Your surname is kushwaha
Stop capping attention seeker
In many videos you are doing this shit
You are in Nepal.but you learn in india.🎉.for all Indians teacher you please search the aashu sir and science and learn channel he is also best teacher in science
54:27 Shayad maine Ise 8th ki book main light ki chapter main pada tha 😅😅 incident ray, normal, reflected ray.
Yeah!!!
Bahut intelligent ho bhai Tum to sab yad rahata Hai tumko
Maja agaya sir padhke
Thank you sir for this beautiful lecture ❤🎉
bhaiya teleporting at 15:00😅😅😅😁😁
No need to fear when Prashant bhaiya is here....😊😊
Prashant bhaiya, please make rapid revision of every chapter 🙏🏻🙏🏻
Teacher ❎ Prashant bhaiya ✅❤❤
15:57 pe 0.25 par karo aur dance Dekho 😂
Ooo godd😂😂😂😂😂
Aesa lg rha h jese sir ne 🥃🍻 hmm😅
Ye gay hai , yeh gay hai aise dono gay direction mein hai😂😂😂
Bhaiya getting darker these days😭💀🙏
Prashant bhaiya class 9 journey was incredible and you have made very easy to learn the concept Thankyou bhaiya