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 . The value of is
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Correct option is E
hcλ−ϕ=Kmax=12mhλd2hcλ2Δλ=h22m2λd3ΔλdΔxdΔλ=(mc)hλd3λ2⇒ΔλdΔλαλd3λ2Similar Questions
An electron in an excited state of ion has angular momentum . The de Broglie wavelength of the electron in this state is (where is the Bohr radius). The value of P is
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