Photoelectric EffectHard
Question
Two separate monochromatic light beams A and B of the same intensity (energy per unit area per unit time) are falling normally on a unit area of a metallic surface. Their wavelength are λA and λB respectively. Assuming that all the incident light is used in ejecting the photoelectrons, the ratio of the number of photoelectrons from beam A to that from B is
Options
A.
B.
C.
D.
Solution
The number of photo electron depends on the number of photons
Number of photon =
∝ λ
Ratio of no. of photo electrons
=
Number of photon =
∝ λRatio of no. of photo electrons
=
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