Cobalt - 60 is used as a source of _____________ in medical therapy & industrial radiography?
Correct answer: B. γ-rays
- A. X-rays
- B. γ-rays
- C. α-rays
- D. β-rays
Explanation
Cobalt-60 undergoes beta decay and produces intense gamma radiation, which can penetrate tissue and industrial components. Its gamma rays are therefore used in medical therapy and industrial radiography.
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