What will be the change in the wavelength of a sound wave in air if its frequency is doubled?

What is the time-period of a tuninh fork whose frequency is 200 Hz?

Calculate the frequency of a wave whose time-period is 0.02 s.

If 20 waves are produced per second, what is the frequency in hertz?

Fill in the following blanks with suitable words

(a) Sound is caused by ………….

(b) A sound wave consists of places of higher pressure called ….. and places of …….. pressure called …………

(c) Wave speed in metres per second equals frequency in …………. Multiplied by ……….. in ………

(d) Sound cannot travel through ……….

(e) The speed of sound in a solid is ………… than the speed of sound in air.

(f) When the frequency of the sound is increased, the wavelength …………