Environment And Road Safety Education And Violence Against Women And Children And Drug Abuse 2020 Exam With Answers

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8.

If by mistake some radioactive substance gets into human body, then from the point of view radiation damage, the most harmful will be one that emits

A: Gamma Rays
B: Neutrons
C: Beta Particles
D: Alpha Particles

The answer is: A

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Explanation

Correct option is A)

Alpha rays as the least penetrating, followed by beta rays, followed by gamma rays as the most penetrating. So, from the point of view of radiation damage, the most harmful will be the one which emits gamma rays.