A) \[\gamma \]-rays have smaller wavelength than X-rays
B) \[\gamma \]-rays emanate from nucleus which X-rays
C) \[\gamma \]-rays have greater ionising power than X-rays
D) \[\gamma \]-rays are more penetrating than X-rays
Correct Answer: B
Solution :
The essential distinction between X-rays and Y-rays is that \[\gamma \text{-}\]rays emanate from nucleus while X-rays emanate from outer parts of atom.
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