Assertion `:` Blue colour of sky appears due to scattering of blue colour.
Reason `:` Blue colour has shortest wave length in visible spectrum.

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

A

Explanation

I (scattering of light) , `prop (1)/( lambda^(4))`, blue light has small wavelength and order of wavelength of blue light is nearly equal to size of scattered particle of sky.