Q29 is right . The hydrogen spectrum has five series in total, corresponding to different transitions of electrons between energy levels. These are: *Lyman series: Transitions to n=1 (ultraviolet region). *Balmer series: Transitions to n=2 (visible region). *Paschen series: Transitions to n=3 (infrared region). *Brackett series: Transitions to n=4 (infrared region). *Pfund series: Transitions to n=5 (infrared region).
Sound intensity is defined as the sound power per unit area. Although the units for sound intensity are technically watts per meter squared, it is much more common for it to be referred to as decibels, dB. It is one tenth of a bel on the logarithmic intensity scale. A decibel is a ratio of the observed amplitude, or intensity level to a reference, which is 0 dB. Hence, the S.I. unit of sound intensity is decibels. Reference: Byjus
Frist question answer vector quantity sir 😅 but your asked question super sir 😊si unit three question super but I gain new knowledge sir in your video 📸❤❤
The answer to Q9 is WRONG. The watt per square metre, symbol W/m2, is the SI coherent derived unit of heat flux density, and irradiance The correct answer is A. The decibel (dB) is a logarithmic unit used to measure sound level.
Yes, as everyone said displacement is vector quantity. But none of them has understand what you have pinned..vector quantity as both magnitude and direction But scalar quantity has only magnitude. By this displacement has both magnitude and direction. By depending up on the object its may act as magnitude. So answer is displacement
Q:no1. Sorry Displacement is a vector quantity with a magnitude and a direction.
Absolutly correct and I have noticed this thing ..
.
@@hinanadirmughalwithenglish2786 OK thnks
Ya correct 💯💯💯
Ya correct 💯💯
Ya correct 💯💯💯
Sir apne to bcha lea bar bar search nhi krna pde ga 😂❤
Q29 is right .
The hydrogen spectrum has five series in total, corresponding to different transitions of electrons between energy levels. These are:
*Lyman series: Transitions to
n=1 (ultraviolet region).
*Balmer series: Transitions to
n=2 (visible region).
*Paschen series: Transitions to
n=3 (infrared region).
*Brackett series: Transitions to
n=4 (infrared region).
*Pfund series: Transitions to
n=5 (infrared region).
Sound intensity is defined as the sound power per unit area. Although the units for sound intensity are technically watts per meter squared, it is much more common for it to be referred to as decibels, dB.
It is one tenth of a bel on the logarithmic intensity scale. A decibel is a ratio of the observed amplitude, or intensity level to a reference, which is 0 dB.
Hence, the S.I. unit of sound intensity is decibels.
Reference: Byjus
This video is very helpful for me thanks ❤
Sir long question ❤❤❤😊
Thank you sir g
Thank you sir ♂️.
I appreciate and I will do the rest
SI unit of sound intensity is decibel Db.
Longitudinal,wave🎉
Frist question answer vector quantity sir 😅 but your asked question super sir 😊si unit three question super but I gain new knowledge sir in your video 📸❤❤
1st question is wrong because all quantity are vector
Exactly but already explained in ist coment
Q1 is wrong displacement is a vector quantity
The answer to Q9 is WRONG.
The watt per square metre, symbol W/m2, is the SI coherent derived unit of heat flux density, and irradiance
The correct answer is A. The decibel (dB) is a logarithmic unit used to measure sound level.
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Sir displacement is a vector quantity distance is scaler quantity
Path follow by body in particular direction is called displacement..
Yes I have already pined check my first comment.
Displacement vector quantity ha
Elastic,potential, energy
Solar,pover ❤❤❤❤❤
2:14 sound ki SI unit Decibel hogi aap galti se w/m² kardiye hai
sound ka decibel hai but sound intensity ka watt per square meter hi hai
Thanks sir 🙂
Thanks for your classes
Thank you sir ❤❤
👍🏻✅
Iow, density 🎉
Q9 correct because intensity is defined as power Carried by a wave in area so the unit of power is wat and area is m2 so the unit of is w/m2
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Sir or bhej di ji ae question entance exam k liye pau
displacement is a vector quantitiy both magnitude &direction❤
Sir, Displacement is a vector quantity not a scalar quantity
Sir G the diffraction is correct
Momentum =Mass ×velocity =force ×time...... May be
Sir, SI unit of sound intensity is dB (Decibel)
We measure sound intensity (also referred to as sound power or sound pressure) in units called decibels.
Si unit of sound intensity is db
You are right mai yehi kahne wali thi😊😊😊
Thankyou sir🥰
Disolacement is a vector quantity sir
Sir apka 1 question ghlat ha q k displacement ek vector quantity ha...❤❤
Sahe but check out first comment
Displacement is a vector quality both magnitude and direction
Right
Displacement is vector
If it's value less than ten then it is vector
Displacement is a vector quantity.
Wolume is a scalar quantity
Distance is also displacement is scalar quantity 😊
Displacement is a vector quantity
Tq sir physics+ chemistry ye chapter wise question kra dijiye yese hi entrance exam ke liye
👍🏻
Yes😂
Good bro
Sir 23 question solved correctly ❤
First Is also wrong. Answer is Velocity not Displacement.
Velocity is also a vector quantity there is no scalar quantity given in the option
@@_1rim👍
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Velocity is also a vector quantity.
Answer is not given here
Good morning teacher where are you from
displacement is avector
Distance is scalar quantity displacement is vector quantity
Distance is scaler quantity but displacement is vector 😮😮😮teacher
Pehla hee galattt😂
SubhaNAllah🎉❤
Sir displacement is a vector quantity 😂😂
Yes
Fossil fuel s🎉🎉🎉🎉🎉
Question number 1 wrong vector quantity Sir
✔✔
26 number walla extreme position hai sir
Q 1 all are vector quality....
Speed 🎉🎉🎉🎉🎉🎉
Very good
First question machiga chadhuvadi sir
Q :9 is wrong it is si unit of sound intensity formula is watt per square meter (w/m2) and si unit of sound intensity is Decible (dB)
Dhyan se pdho udhr sound intensity ka hi sir ne watt per square meter btaya hai na ki sound ka..... Bina dekhe bolne se phle socha krr...
Very effective
For 22 nd question option D is correct but tht is not y tht is “gaamaa”
Sound intensity is the si unit is decibel
Hoina thik xa tesko
Nhiii d option correct hai
Dear displacement is a vector
Yes dear already explained in first cmnt
Yes, as everyone said displacement is vector quantity. But none of them has understand what you have pinned..vector quantity as both magnitude and direction
But scalar quantity has only magnitude.
By this displacement has both magnitude and direction.
By depending up on the object its may act as magnitude.
So answer is displacement
Distance is scaler quantity but displacement is vector sir
Yes dear I have already pined check the first comment
Firstly i also confused displacement is scalar quantity!!😮
Displacement Is Vector Quantity
Already explained in first coment
It will use for eapcet ???
Displacement is a vector quantity 😢
Displacement is the vector quantity h bhai
Distance is scalar quantity
Super class sir
Thank u
I have answers 31out of 32 first question comfused😅😅
The correct answer of first question check the first coment, thank u so much
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𝐌𝐚𝐬𝐡𝐚 𝐚𝐥𝐥𝐚𝐡 𝐅𝐒𝐂 𝐤𝐲 𝐛𝐡𝐢 𝐌𝐂𝐐𝐬 𝐡𝐨𝐭𝐲 𝐡𝐚𝐢𝐧 𝐬𝐢𝐫❤
Displacement is vector quantity 😮
Yes
Displacement isn't a scalar its vector quantity😅
Distance hona chahiye tha
Displacement
If you survive in jammu you will survive everywhere
#1..is incorrect because all of them are vector quantity so pls reply.
Yes
Please displacement is vector
Yes already pined
Displecement is no scaler quantity
Right
Displacement is a scalar?????........somebody just call the Swedish community to give bro NOBEL prize🎉
A) 1/2 mv^2//
Sir most important questions kra dijiye physics and chemistry ke
Ok
Displacement Is a vector quantity
Yes
is this also for medical entrance exam in Czech Republic?
Yes according to ur syllabus
Pls remove this background music its so irritating and its disturbing a lot😢
1 no.questions right ans is D
Accelerations
That is right
@@AlltestMCQs thank you
@@AlltestMCQs Can I ask you to make a video?
@ExphubBadal yes
B)Refraction//
Sir Q21 is wrong
Use of energetic particals in electron microscope is because of there's wavelength is very short
S.I Unit of Intensity Of Sound is Decibels or not??
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Decibel hi hia
@@creativepeople-n9n yeah
In the ninth question the spelling of metre is wrong
It is metre not meter
They both have a different meaning
Is this for Sindh board students...???
Yes
Displacement is a vector quantity. Not scalar
I have pined check the first coment
Sir, Displacement is not scalar quantity.
Q .29 wrong right ans is 6
1Q not asr b/c desplesmt is vector
Displacement is not scalar quantity
Sir ye integral ke entrance me ayega kya b optometry course ke liye???
Agr syllabus mai physics hai to
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Ager aise question Ane lage .. tou 😂.
30 th question answer is infrared
No tv picture tube is X rays
All are vector quantity in question 1 👍
Check first coment thank u
@@AlltestMCQs okh
In Q21 according to Google the option is c is right
😢 what we have to choose any one can say??