- #1
gptejms
- 386
- 2
A friend and class-fellow of mine(B.B. Gupta) came up with the following interesting problem(during the starting days of our M.Sc.):-There's a photocell and a (monochromatic)source of light at a certain distance from the photocell.The source of light emits light of frequency lower than what is required for the photoelectric effect.So there is no photoelectric effect.Now the source of light starts moving towards the photocell with some constant velocity--the resultant doppler effect is sufficient to take the frequency beyond the threshold(in photocell's frame).The question is 'would the photoelectric effect now be observed?'If yes,where does the photon get the extra energy from?
This is the problem in its original form.Let us see what ideas are generated here.
J.Singh
This is the problem in its original form.Let us see what ideas are generated here.
J.Singh