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Hrishant Goswami Grade: 10
        Show that it is not possible for a photon to be completely absorbed by a free electron.
3 years ago

Answers : (1)

Aditi Chauhan
askIITians Faculty
396 Points
										Sol. If the I undergoes an elastic collision with a photon. Hen applying energy conservation to this colllison We get, hC/λ + m base 0 c^2 = mc^2

And applying conservation of momentum h/λ
Mass of e = m = m base 0/√1 – v^2 /C^2
From above equation it can be easily shown that
V = C or V = 0
Both of these results have no physical meaning hence it is not possible for a photon to e completely absorbed ny a freed electron.
3 years ago
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