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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.
Dielectric constant of vacuum is (A) Infinity. (B) 100. (C) One. (D) Zero. Ans: Dielectric constant of vacuum is one.
A scalar function is given by f(x, y, z) = 2xy 2 + xyz 3 . Calculate the gradient of the function at the point (1, 1, 1).
working and construction of fabry perot interferometer
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