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Consider aimimg a beam of free electrons...

Consider aimimg a beam of free electrons to wards free atoms . When they scatter, an electron and a protons cannot combine be produced a H-atom,

A

beacause of energy conservation

B

with simulataneously releasing energy in the form or radiation .

C

because of momentum conservation

D

because of angular momentum conservation .

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The correct Answer is:
A, B
When a beam of gree electron is aimed to towards free protons, the electron get `5t` scattered on ac-count of energy conservation . An electron and a proton can combine to produce ga H-atom only if they simulataneously relase energy in the form of radiations.
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