Sound Test - 29...

The frequency of sound waves can be expressed in

Hertz is the unit of:

When we pluck the wire of a sitar, the waves produced in the wire are

If a wave completes $$24$$ cycles in $$0.8 \ s$$, the time period of the above wave would be (in seconds)

Echo is produced due to :

The sound propagates in a gaseous medium by

The waves in which the particles of the medium travel in the same direction as the waves, are :

The waves which propagate in metals are

Fill in the blank. 

A sound wave travels by a speed of $$330\ ms^{-1}$$ in air. If the wavelength of the wave is $$110\ cm$$, the frequency of the wave is _______.