Atoms And Nuclei Question 371
Question: Consider $ \alpha $ particles, $ \beta $ particles and $ \gamma $ - rays, each having an energy of 0.5 MeV. In increasing order of penetrating powers, the radiations are:
Options:
A) $ \alpha ,\beta ,\gamma $
B) $ \alpha ,\beta ,\gamma $
C) $ \beta ,\gamma ,\alpha $
D) $ \gamma ,\beta ,\alpha $
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Answer:
Correct Answer: A
Solution:
- The penetrating power is dependent on velocity. For a given energy, the velocity of y radiation is highest and a-particle is least.
