The motion of the particles of a medium when a sound wave is passing through it is:
rotatory
random
oscillatory
translatory
Oscillatory motion is executed by the particles of the medium due to the wave propagation.
Complete the following sentences :
(a) Sound can not travel through ___, but it requires a ___ .
(b) When sound travels in a medium, the particles of medium ___ but the disturbance ___ .
(c) A longitudinal wave is composed of compression and ___ .
(d) A transverse wave is composed of crest and ___ .
(e) Wave velocity = ___ x wavelength.
Three statements regarding the propagation of sound waves.
I Sound waves propagate through a series of crests and troughs.
II Sound waves require a material medium for their propagation.
III The propagation of sound waves is attributed to the motion of particles.
Among the given statements,