Monochromatic light of frequency is incident on a metal surface
PHYSICS · Single correct · CBSE · Physics · Dual Nature of Radiation and Matter · Dual Nature of Radiation and Matter
Problem
Monochromatic light of frequency ν is incident on a metal surface. If the intensity of the light beam is doubled while the frequency remains unchanged and above the threshold value, which of the following changes will necessarily occur for the photons in the beam?
(a) Energy of each photon doubles
(b) Number of photons per unit time doubles
(c) Wavelength of the photons halves
(d) Energy and number of photons both double