Assertion : The clouds in the sky generally appear to be whitish.
Reason : Diffraction due to clouds is efficient in equal measures its all wavelengths.

Options

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

Answer

C

Explanation

The clouds consist of dust particles and water droplets. Their size is very large as compared to the wavelength of the incident light from the sun. So there is very little scattering of light.
Hence the light which we receive through the clouds has all the colours of light. As a result of this, we receive almost white light. Therefore, the clouds are generally white.