Question

An electromagnetic wave of wavelength ‘λ’ is incident on a photosensitive surface of negligible work function. If ‘m’ mass is of photoelectron emitted from the surface has de-Broglie wavelength λ_d, then ______.

Options

• λ_d = `((2"mc")/"h")` λ²

• λ = `((2"mc")/"h")` λ_d²

• λ = `((2"h")/("mc"))` λ_d²

• λ = `((2"m")/("hc"))` λ_d²

Answer 1

 An electromagnetic wave of wavelength ‘λ’ is incident on a photosensitive surface of negligible work function. If ‘m’ mass is of photoelectron emitted from the surface has de-Broglie wavelength λ_d, then `underline(λ = ((2"mc")/"h")""^lambda"d"^2)`.