Sound full chapter | Physics | Class 9 | CBSE Syllabus

Sound full chapter | Physics | Class 9 | CBSE Syllabus

In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain.

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[ganeshpeddinti]

I searched 9th class physics all are in hindi only finally I found excellent teacher in English

[poonguzhalikalaivanan]

Very very useful to me... thank you sir

[ganeshpeddinti]

Excellent explation sir
. Thank u very munch.

[Ilamuhil-nfot]

Hi there - pebbles CBSE board - I have a dout in [ 1:08:31 ] the wave length = 1.5 cm . Dont we change it into m. Do we need to take it directly as cm. Pls Answer ASAP cause da after Tmro i have my Exam .. I hope you guys do it for me.

[ranitiwari]

I had ever seen teacher like you sir You explain this chapter very nicely and In very easy way👍👍😁😁

[UmaDevi-pwus]

Thank you sir for the super explanation sir

[StyleWithMe-xtef]

Hands off sir ❤ thank you so much for your explanation

[sangeethat]

Nice explanation sir, thank you very much

[shantadevi....]

Sir one dought do all c and R travel in same direction or in opposite

[vijayalaxmivijayalaxmi-mg]

Sir, when it comes about transverse wave, why it moves perpendicular direction ?

[varalamallaiah]

Thank you sir for nice explanation 👍✍🙏🙏🙏🙏🙏🙏🙏

[haria]

good explanation, but.... not satifactory😢😢😢😢😢😢😢😢😢

[suryanaidu]

Why don't you take crust and truft

[MadhuMarri-ky]

Not nice worst explanation which I heard ever😤

[krishravalrollno]

Please make some energy in your sound also and use the HINGLISH

[abhishekv]

NICE explanation sir
I can easily understand the concept