Question detail

Why does background radiation vary with location?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Hazards and uses of radioactive emissions and of background radiation

Question

A. Different geological formations and cosmic ray exposure
B. Variations in human activity
C. Differences in building materials
D. All of the above

Answer

All of the above

Explanation

Background radiation can vary due to geological formations, cosmic rays, human activities, and building materials, making 'All of the above' the correct choice.

Common mistake

Misunderstanding Background Count Rate

Students often confuse background count rate with the count rate from a radioactive source, thinking they are the same.

Emphasize that the background count rate is the natural radiation present in the environment and must be subtracted from the measured count rate to obtain the true count from the radioactive source.

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