Assertion : Photoelectric effect demonstrates the wave nature of light.
Reason: The number of photoelectrons is proportional to the frequency of light.

Options

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

Answer

D

Explanation

Photoelectruc effect can be explained on the basis of quantum theory or particle nature of light where wave nature of light fails to explian the photoelectric effect.The number of photoelectrons is proportional to the intensity of incident light/l=nhv Where n is number of photons emitted/absorbed per unit area per second.n and hv are independent factors.