Choose the incorrect statement:

Options

A. The velocity of photoelectrons is directely proportional to the square root of wavelength of light
B. The number of photoelectrons emitted depeds upon the intensity of incident light
C. The velocity of photoelectron is directely proportional to the frequency of the incident light
D. The velocity of the photoelectrons is inversely proportional to square root of the frequency of the light.

Answer

a,c,d

Explanation

As `K=hv-phi_(0)` or `1/2mv^(2)=(hc)/lambda-phi_(0)`
`:. v prop sqrt(v)` or `v prop1/(sqrt(lambda))`
so option `a,c,d` are incorrect as no. of photoelectrons depends on intensity of incident light, so, option b is correct.