A) \[y\]-rays have smaller wavelength than -rays
B) \[y\]-rays emanate from nucleus while X-rays emanate from outer part of the atom
C) \[y\]-rays have greater ionizing power than X-rays
D) \[y\]-rays are more penetrating than X-rays
Correct Answer: B
Solution :
The essential distinction between X-rays and y-rays is that y-rays emanate from nucleus while X-rays emanate from outer part of atom.
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