A photoelectric material having work-function ϕ0 is illuminated with light of wavelength λ (λ<hcϕ0). The fastest photoelectron has a de Broglie wavelength λd. A change in wavelength of the incident light by Δλ results in a change Δλd in λd. Then the ratio Δλd/Δλ is proportional to

A photoelectric material having work-function ϕ0 is illuminated with

1.	A photoelectric material having work-function ϕ0 is illuminated with light of wavelength λ (λ<hcϕ0). The fastest photoelectron has a de Broglie wavelength λd. A change in wavelength of the incident light by Δλ results in a change Δλd in λd. Then the ratio Δλd/Δλ is proportional to
Answer» A photoelectric material having work-function $ϕ_{0}$ is illuminated with light of wavelength $λ$ $(λ < \frac{h c}{ϕ_{0}})$ . The fastest photoelectron has a de Broglie wavelength $λ_{d}$ . A change in wavelength of the incident light by $Δ λ$ results in a change $Δ λ_{d}$ in $λ_{d}$ . Then the ratio $Δ λ_{d} / Δ λ$ is proportional to