Sound Test - 46...

The speed of a sound wave is $$340\;ms^{-1}$$. What is the wavelength of the wave if its frequency is $$500\;Hz$$ ?

The time period of a vibrating body is $$0.01\;sec$$. Its frequency will be :

A normal man is unable to hear the sound emitted by source. Out of the possible reasons, the one which is not applicable is

Sound waves cannot pass through

A sound wave completes $$20$$ vibrations in $$2.5\;s$$. Its frequency will be equal to :

The product of the time period of a sound wave and its frequency is equal to:

Imagine a cannon being fired on the surface of the moon. Then

The echo will be heard if the orginal sound reflected by an obstacle reaches our ears after

The frequency of sound waves is $$11\ kHz$$ and its wavelength is $$20\ cm$$, then the velocity of sound waves is ______.

An echo will be heard if the minimum distance between the source of sound and the obstacle is