MHT CET 2022 Physics question
A photoelectric surface is illuminated successively by monochromatic light of wavelength '()' and ''. If the maximum kinetic energy of the emitted photoelectrons in the first case is one-third that in the second case, the work function of the surface of the material is (c = speed of light, h = Planck's constant)
Answer: (B)
Solution
By Einstein's equation . Case 1: . Case 2: . Given : , so
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account