JAMB Physics 2018 Objective — Question 17

Question 17 of 38 from the Joint Admissions and Matriculation Board (JAMB) Physics 2018 Objective paper, with the correct answer and a full explanation.

Which of the following can gamma rays be stopped by?

A. paper
B. aluminium
C. copper
D. thick lead blockCorrect

Explanation

Gamma rays are highly penetrating and can only be stopped/absorbed by a thick lead block (or similar dense material).

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