Find the frequency of a photon of frequency ‘v’ after falling through a height ‘H’ in earth’s gravitational field. Assume that a photon manifest any increasein its energy by changing its frequency.

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anonymous · Answer

hint: $$E = hv$$ where E is the energy of the proton, h is planck's constant, and v is the frequency of the proton
also it might be useful to use $$U=mgh$$ where U is the potential energy, m is the mass, and h is the height