Which one of the following possesses greater penetrating power?
Correct answer: D. Neutron
- A. α. rays
- B. X. rays
- C. β. rays
- D. Neutron
Explanation
Because neutrons are uncharged, they do not interact with matter via electrostatic forces and penetrate much deeper than charged particles or photons of similar energy. Their ability to pass through the electron cloud and interact directly with nucleus gives them great penetrating power.
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