Dual Nature Of Light Question 503

Question: The essential distinction between X-rays and $ \gamma - $ rays is that [BHU 1994; RPMT 1991; JIPMER 2001, 02]

Options:

A) $ \gamma - $ rays have smaller wavelength than X-rays

B) $ \gamma - $ rays emanate from nucleus while X-rays emanate from outer part of the atom

C) $ \gamma - $ rays have greater ionizing power than X-rays

D) $ \gamma - $ rays are more penetrating than X-rays

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Answer:

Correct Answer: B

Solution:

The wavelength of the g-rays is shorter. However the main distinguishing feature is the nature of emission.