Questions
A Photoelectric material having work-function is illuminated with light of wavelength . The fastest photoelectron has a de Broglie wavelength . A change in wavelength of the incident light by results in a change in . Then the ratio is proportional to
detailed solution
Correct option is D
hcλ−ϕ=Kmax=12mhλd2 ∵Kmax=P22m After differentiating, ⇒hcλ2Δλ=h22m2λd3Δλd⇒ΔλdΔλ=(mc)hλd3λ2⇒ΔλdΔλ∝λd3λ2Talk to our academic expert!
Similar Questions
The graph between and stopping potential (V) of three metals having work functions and in an experiment of photo-electric effect is plotted as shown in the figure. Which of the following statement(s) is/are correct? [Here is the wavelength of the incident ray].
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