Heyy juniors,A senior here i am in class 9 right now and believe me math and physics read carefully cuz in future it will help u a lot guys 9 pe focus krlo ache se fir koi tnsn hi nhi rhegi or sb sub jo jynge trust me but ek bar math physics me piche chot gye n to literally rona padega so be serious dont chill atleast 2 year this 2 years can change your entire life guys no one see 8 results and 9 but every one asked what your board results then ?so study guyZ for our parent they are waiting for our success achievement If our result came bad then what we gonna tell them what we do since 10 year huhh have you ever thought about it?think about this ok be serious and all the best for future
42:41 Nunber of oscillation = 20 Frequency = Totam Oscillation/Time taken = 20/1Hz ={20Hz} Ans 😊😊😊 48:44 Paisa hi paisa hoga 😂😂 Pw is better than school 😂😂😂😊
48:36 the dialog is paisa hi paisa hoga.... And sir the answer is One oscillation = 1 Hz or frequency Then 20 oscillation = 20 Hz .... Thanks sir..... Love from bihar to whole ❤ PW tutors and facilities.....,
Paisa hi pasa 😂 hoga sir I must say you and all teachers are teaching us very deeply we understand clearly because all speech peace full and something funny so we understand clearly
🎉😢😮😅😊😊 bahut Sundar song download kro pilij kas me to send you bhai ki bebstha ji ka no de rakhi bat 🏓 🏓 🏓 🏓 🏓 🏓 ka hai kya sar se ho gaya hai na madam ko kahan hai ghumne ka ek jagah hai kya sar me aaoo belkam h na medam ko bula dijiyega ki nahi hai na madam se baat kar sakte hai kya aap mujhse baat hai kya 😮@@alokpratapchoubey6329
No. of oscillation = 20per sec We know that no. of frequency is 20/1hz=20hz Thank u sir for teaching I have an exam tomorrow and u teach us very very nice
Sir I was unable to understand what is amplitude but after your lecture I have completely understood what is amplitude thank you very much sir also sir the Mic is working as the receiver of sound in which the sound energy is getting travelled by the medium which is air through the particles and I am able to use that mic to autodictate my words
Thank you some much for expecting such nicely But I also wanted the numericals from this chapter because in my exam there are numericals also Like this is velocity and time now find the sound Btw thank u
Heyy juniors,A senior here i am in class 9 right now and believe me math and physics read carefully cuz in future it will help u a lot guys 9 pe focus krlo ache se fir koi tnsn hi nhi rhegi or sb sub jo jynge trust me but ek bar math physics me piche chot gye n to literally rona padega so be serious dont chill atleast 2 year this 2 years can change your entire life guys no one see 8 results and 9 but every one asked what your board results then ?so study guyZ for our parent they are waiting for our success achievement If our result came bad then what we gonna tell them what we do since 10 year huhh have you ever thought about it?think about this ok be serious and all the best for future
42:41 Nunber of oscillation = 20
Frequency = Totam Oscillation/Time taken
= 20/1Hz
={20Hz} Ans 😊😊😊
48:44 Paisa hi paisa hoga 😂😂
Pw is better than school 😂😂😂😊
48:41 Paisa hi Paisa hoga
Shai me yaar pw is better then school
@@DARKGAMER11233 right ☺️
School ko chhod do😂😂
@@Nileshgreninja- ha but phir ye society nahi jine degi bolegi ki dekhi school chhod jar beth gayi 😒😒
Salute to our physics wallah teachers 👏👏
Sir is quite sick 😷 but still teaching us😊
How you now
he was coughing several times in the video madam@@dileeptiwari2075
Ya they were coughing
Sick yet teaching with SMILE
What is vacuum
0:23 I literally thought that my speaker ripped off😅😂😂😂
😂
😅am also thought that my speaker ripped off
Same😂😂😂😂😂😅
I thought that it is muted for copyright😅😅..... and also fast forwarded to listen 😅😅😅😂😂😂
True
How many of u are here to complete syallabus as fast as possible to enjoy the left months..... 🤤
0
Meh!
Baji same me bhi
Me
🤘😎
Na bro iam are here in my exams bcoz i enjoyed the whole season :)))
Who is the best teacher in pw
Alok sir sunil sir
👍 👍
Alok sir
Sunil sir
Appko kon lgta
Ritik sir..❤
Sunil sir
Jisko 8 me 90 % plus chyiae like karo
Bhai mere to 95 aa bhi gaye
Bhai mere to 99.5 aa gya😂😂
Jhuutha@@Ayush-v8m
Mera 96.8 aaya
Bhai Mera 97 percent hai
Who 🤔 is watching this in 2024😊
Iam
Me
Me😂
Me
Me
Oscillations =20
Total Time = 1 second
Frequency = No. of oscillations
______________________
Total Time
F = 20/1
F= 20
Ans:= 《20Hz》
Same ❤❤yrr😊😊
Same
Same
Same
1 oscillation
Frequency=(total oscillation) upon (time taken) = 20/1 Hz
=20 HZ Ans pw best 😊😊
Hi
Hello
Izujzi
0:23 me turning sound button up 😂😅
Yes
48:36 the dialog is paisa hi paisa hoga....
And sir the answer is
One oscillation = 1 Hz or frequency
Then 20 oscillation = 20 Hz ....
Thanks sir.....
Love from bihar to whole ❤ PW tutors and facilities.....,
Very pleasant video and very useful for back benchers for last days of exam
😂
But why back benchers come to see this video? They did not have time.
@@lokesh_martialartisti m also back bencher tomorrow is my exam and i want 35 makrks out of 100😅😅
@@fggyffffg9542me also
Yess😂🙂
Oscillation=20
Time taken= 1s
Frequency= no. Of oscillation
-----------------------------
Time taken
= 20
------
1
=20hz
Paisa hi pasa 😂 hoga sir I must say you and all teachers are teaching us very deeply we understand clearly because all speech peace full and something funny so we understand clearly
noupee paiisaa hi paiisaa hoga babu bhaiyaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa uhhh.......................... actually thodaaa zyada hi hogya ..................butt koii na oyeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee.........................................................................................................................................................................................................................................bi
Thora paisa mere liye bacha ke rakhna
Finally fund that comment and yes u are right 😂❤💜
😂😂
20 oscillation per second is 20HZ
correct
Yes
Sir mera bhi ye answer hai
0
Yes
PW is literally better than school
Right 👍
Kin kin logon ne socha ki mobile ka speaker kharab ho gya😂😂 0:23
Like karo
👇
😂😂😂
Me
Ma
bhai ya bahen mera aata hai
Na
Ans:20
Because in definition of the frequency, they have written that ,The number of vibration experienced by a vibrating body is known as frequency
20Hertz
Try in hi Lee iq
In this Akshay Kumar said paisa he paisa 😂😅
Exam ke ek din phele aake padhne wale like karo jaldi😂😂❤
sirf tu hamare jaise log nhi
Correct😂
1 din pehele nahi bhai 4-5 ghante pehele 😂😂
same @@dipalideshpande9603
Present
Sir you are very great I love pw class
Kis kis ko ye lga tha ki hamer phone ki awaj chali gayi
Yeah
Merko
Muja
Me
😂me
Kon kon half yearly ka liya padhna aaya ha
Mee bro😂
😊me bro😊
Me😂
after halfyearly
😂me
Very nice explained 😊😊
Alok Sir 🔥🔥🔥🔥🔥🔥
Thank you sir 🥳🥳
Backbenchers are watching this video before exam 🙂
I watching this 45 days before exam
Me too but 17 days before😂😂
Backbenchers paste bhi hai
Me watching a day before exam
Yes me watching this video before exam my exam is started yesterday
Respected sir ,,
Excellent 👌
Amazing in-depth explanation👏👍
Some examples of unpleasant sounds are:-
Songs of Dhinchak Pooja, Tony Kakkar and Thara bhai Joginder😂😂
Right ✅ 🚷📳⭕🔱🔓🔓📡 inke bakwas songs ko ban kar dena chahiye 🗣🗣🗣💃🕺🧟🧟♀️👯♂️👯♀️👯
Neha kakkar also
No no neha karrar not@@parth6013
Sir your explanation is out standing 💯💯💯
It helps me to understand this chapter very easily
You are right
Happy Birthday Alok sir.. you are op 🚩
Thank you sir 🥳❣️
Happy late birthday sir 😊😁. Your teaching is awesome.
Rakshak sir, Aapka Kab hai?
🎉😢😮😅😊😊 bahut Sundar song download kro pilij kas me to send you bhai ki bebstha ji ka no de rakhi bat 🏓 🏓 🏓 🏓 🏓 🏓 ka hai kya sar se ho gaya hai na madam ko kahan hai ghumne ka ek jagah hai kya sar me aaoo belkam h na medam ko bula dijiyega ki nahi hai na madam se baat kar sakte hai kya aap mujhse baat hai kya 😮@@alokpratapchoubey6329
46:36 46:37 46:37 46:37 46:37 46:38 46:38 46:38 46:38 46:38 46:38 46:39 46:39 46:39 46:39 46:39 😮
Paisa hi paisa ho ga
Babu bahiya
48:43
Alakh sir's teaching style be like:
So beautiful
So elegant
Just looking like a wow.....😅😜😘😘
Thanks sir.....💓💓
He is alok sir
Sus
10:02 😂😂😂😂😂😂
Thank you so much sir 😊
No need fear when pw is hear because dad the umang batch is near
Sir you are the best teacher of India jitne tarif utni km hai ♥️♥️
Sir because of you I will pass I Am studying at 1:13 before exam🥰🥰
Frequency= Total oscillations/ Time taken
= 20/1=20 Hz (Hertz)
Q1=Frequency :Number of oscillators/time
:20/1 =20per sec or 20Hz
Thank you sir
48:30 hum ye samjh rahe ki ye lecture bahut achha tha or maja aa gaya kuch naya jaan ke
That's like Qualified✅Teacher👦
If an object oscillates 20 times in one second what would be it's frequency ?
= 20 Hz
Sir,i am in love with your teaching ❤😊 thanks for teaching ❤
👍
I'm obsessed with you sir! ❤️❤️
🔍🔍
Chiiii😅
The entry was marvellous along with that hat's of you because of your teaching efforts of your's 😇😇😇😇😇
Frequency:-No.of oscillation/time taken
=20/1
=20Hz
Where are you niharika in this time ? I think that I know you ?🤔🤔🤔🤔
Please tell me about you
Nice teaching sir ji 🎉🎉
i literally thought that my pc has broken for sound
Me either
Same
@@misty9415 😎
Same🤣
@@amboygamer8505 hello
Thanku sir ❤
1 (Hz)= 1 oscillation per second
yes
Happy new year 🎉
Kon kon 2024 me class 8 me aae ho like karo😊
Meee
Meee😅
48:36
Paisa hi paisa !!!😅
Hera pheri movie
10:38 mera scale tudwa diya😢😢
its okey dude get another one 😂
Jooth bol rahe ho
9:38 is this 👆 down 👇or left 👈 right 👉
20 hertz by multiply 1 per sec x 20 oscillations is 20 times
I think the answer is right but the explanation is wrong
@@princetamboliya4599 hmm🤔🙄
@@Farhan_H cfghy
Tankyou sooo soo much sir for this lecture 🤗🤗
Good really very thanks for this lecture 👍
Tq sir for teaching us this topic wonderfully.
Thank you so much PW for the Lecture ❤❤❤❤❤
No. of oscillation = 20per sec
We know that no. of frequency is 20/1hz=20hz
Thank u sir for teaching
I have an exam tomorrow and u teach us very very nice
Yes sir we can hear in the last 😂😂😂very nice teaching sir thank you very much❤❤❤
❤❤❤❤b❤❤❤❤
❤❤❤❤e❤❤❤❤
❤❤❤❤s❤❤❤❤
❤❤❤❤t❤❤❤❤
❤❤❤❤s❤❤❤❤
❤❤❤❤i❤❤❤❤
❤❤❤❤r❤❤❤❤
Who is watching in September 2024 when half yearly is near
✋
🤚
🤚
Ohh my god 🙏🙏 amazing teaching sir.. I really loved your teaching. Your are teaching so wonderfully 💗💗💗💗💗..love from Smith nayak from Odisha 💗💗💗💗💗💗💗💗💗
Hii
Yyghyy
Such a Great Teacher Ever Ever 😍😍😍🤩🤩🤩
Yess
All teachers of pw are .....just like....god👑✨
32:05 not get it properly
This like a teacher 💯 💯
sir ka sab lecture hame aur sabhi dost ko bhi samajh aa raha hai
Sir I was unable to understand what is amplitude but after your lecture I have completely understood what is amplitude thank you very much sir also sir the Mic is working as the receiver of sound in which the sound energy is getting travelled by the medium which is air through the particles and I am able to use that mic to autodictate my words
Frequency=number of oscillation/time , 20/1= 20HZ FREQUENCY
43:58 sir but still we are able to listen to the sound more then 20,000 hertz right?
Hello Sir.
The answer would be:-
}Freq.=no. of vibrations completed
Time Taken
=20/1
Therefore, 20 hertz Or 20 per second
My name is Prasenjit Ghosh.
Sir 9 ka bhi koi chapter kro do plz 🙏🙏🙏
Question answer is 20
And pictures answer we observe by the emotions 🙂
In 1.25x speed you look like a professional teacher ❤
Thank you so much sir for this video ❤️❤️❤️❤️. You are the best teacher in the world for me 🤗🤗🥰🥰.
Answer of the question is 20Hz frequency
If anybody is watching comments and this answer is correct then like👇👇👇
Thank you some much for expecting such nicely
But I also wanted the numericals from this chapter because in my exam there are numericals also
Like this is velocity and time now find the sound
Btw thank u
👋 Hello 👋 hello 👋 hello 👋 hello 👋
Why Sound cannot travel through vacuum
Because there is no particle which can vibrate to make sound go from one place to another
Sir nice explanation smaz aa gya 🤩🤩🤩
Amazing teaching
Oscillatory motion is also known Periodic motion
Also, vibratory motion
Not necessarily. Oscillatory motions are always periodic but every periodic motion is not oscillatory.
We know that
@@akmishra8826 is correct
F=n/t
F=20/1
F 20 Hz 😮
PW is best' 🎉🎉
Sir fen nahi Chal raha hai dhandhi hy 😂😂
Thankx sir bhut Mst pdhaya 😇🙃🤗🤗🤗😳
The teaching method of sir is awesome
42:14 Frequency = 20
20Hz
thanks sir very very much tomarrow is my exam the best teacher and pw is best😍
Very good explanation 😁
Jisko top karna hai like karo
Hum e to fail karna hai
❤❤❤
Im watching this videa just one day before the half early😎🤯😎🤯😎
Me also😂
6:06 If you shake your device the black dots will stop
Sir plz explain the topic of echo and sonar system and oscillatory motion of a simple pendulum bcz it is given in CBSE books
Love it!
48:39 "Paisa Hi Paisa Hoga" from Hera pheri 😂
Q. If an object oscillates 20times in one second what would be it's frequency?
Ans. 20Hz
Thx
You are the next teacher on pw🤯🤯🤯
i thank for phisics wallah foundation . your teaching scill is so good i understand everything in one shot😀😃😁🤩
bhai skill ki splling scill nhi hoti hai
@@uniquegamer1415 spelling ki bhi galat h bhai teri 😂
Frequency is = to oscillation
So 20 osi.. is = to 20 frequency (Hz)
What is frequency
Me with you at night ❤
lath
thank you sir for your easy explanation
Nice lecture sir 🙂