An electromagnetic wave of wavelength λ is incident on a photosensitive surface of negligible work function. If m is mass of the photo-electron emitted from the surface and has de-Broglie wavelength λd, then -
A λ=(2/h mc)λ2d
B λ=(2/m hc)λ2d
C λd=(2mc/h)λ2
D λ=(2mc/h)λ2d
