Assertion : Radio waves are diffracted by buildings
Reason : Radio waves are high energy waves.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false

Answer

C

Explanation

Radio waves are electromagnetic waves having low energy. A low energy wave has a low frequency and consequently a large wavelength. Diffraction of waves takes place when the obstacles in the path are of a size comparable to the wavelength of the wave. For some radio waves whose wavelength is comparable to the size of the building get diffracted by the building.