A photoelectric material having work-function `phi_(0)` is illuminated with light of wavelength `lamda(lamdalt(hc)/(4_(0))).` The fastest photoelectron has a de Broglie wavelength `lamda_(d).` A change in wavelength of the incident light by `Deltalamda` results in a change `Deltalamda_(d)` in `lamda_(d).` Then the ration `Deltalamda_(d)//Deltalamda` is proportional to

Options

A. `lamda_(d)//lamda`
B. `lamda_(d)^(2)//lamda^(2)`
C. `lamda_(d)^(2)//lamda`
D. `lamda_(d)^(3)//lamda^(2)`

Answer

D