Correct Answer - Option 4 :
Sound waves does not show the phenomenon of diffraction
Concept:
Sound Waves:-
It is the form of energy which produces, in us, the sensation of hearing.
Properties:-
(a) Longitudinal in nature.
(b) It requires a material medium for its propagation.
(c) Sound waves can be reflected.
(d) Sound waves suffer refraction.
(e) Sound waves show the phenomenon of interference
(f) Sound waves shows diffraction
(g) Sound propagates with a velocity much smaller than that of light.
(h) Sound gets absorbed in the medium through which it passes.