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An x-ray photon collides with a free electron, and the photon is scattered. During this collision there is conservation of:
a) Momentum but not energy
b) Neither momentum nor energy
c) Energy but not momentum
d) Both momentum and energy
Ans:
This collision there is conservation of both momentum and energy.
Proton was discovered by: (1)Chadwick (2)Thomson (3)Goldstein (4)Bohr Ans: (3)Goldstein
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