Question

2...State whether true or false..

1... a medium is not always needed for a sound travel..
2... in humans ear,pinna produces sound..
3...if the amplitude of vibration is large , the sound is feeble..
4... the smaller the frequency of vibration, the greater is the pitch.

Answer 1

HEY DEAR HERE IS UR ANSWRR
.
.
1)FALSE
2)FALSE
3)FALSE
4)FALSE

Answer 2

(1) False

(2) True

(3) False

(4) True.

All these statements are from the chapter "Sound" in Physics from the high school level.

They signify that sound has many characteristics in it and is also dependent on a lot of parameters.

The frequency of sound is a very important parameter that determines its quality.

Moreover, the frequency of sound is inversely proportional to its time period and it has a lot of consequences to sound quality.