In the Compton effect, a photon of wavelength andfrequency f hits an electron th

Question

In the Compton effect, a photon of wavelength andfrequency f hits an electron that is initially atrest. Which one of the following occurs as a result of thecollision?
a. Photon is absorbed completely. c. Photon gains energy, so the final photo has a freqeuncygreater than f. c. Photo fains energy, so the final photon has a wavelengthgreater than ~. d. Photo loses energy, so the final phtoo has a freqeuncy lessthan f. e. Photon loses energy, so the final photon has a wavelengthless than ~.
I know that (d) is the correct answer. Can anyone explain tome why?
Will give points to anyone who answers! Lifesaver to personwho gives best one.
a. Photon is absorbed completely. c. Photon gains energy, so the final photo has a freqeuncygreater than f. c. Photo fains energy, so the final photon has a wavelengthgreater than ~. d. Photo loses energy, so the final phtoo has a freqeuncy lessthan f. e. Photon loses energy, so the final photon has a wavelengthless than ~.
I know that (d) is the correct answer. Can anyone explain tome why?
Will give points to anyone who answers! Lifesaver to personwho gives best one. a. Photon is absorbed completely. c. Photon gains energy, so the final photo has a freqeuncygreater than f. c. Photo fains energy, so the final photon has a wavelengthgreater than ~. d. Photo loses energy, so the final phtoo has a freqeuncy lessthan f. e. Photon loses energy, so the final photon has a wavelengthless than ~.
I know that (d) is the correct answer. Can anyone explain tome why?
Will give points to anyone who answers! Lifesaver to personwho gives best one.

Explanation / Answer

energy of the photon E = h f where h = planck's constant            f= frequency from above E f i.e., energy is directly proportional to frequency ofphoton. here energy loses,So, frequency is decreases .

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