Question detail
Which material is best for reducing gamma radiation exposure?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Atoms and nuclear radiation
Question
- A. Paper
- B. Aluminium
- C. Lead
- D. Wood
Answer
Lead
Explanation
Lead is dense and effective at reducing gamma radiation exposure due to its high atomic number.
Common mistake
Misunderstanding Radiation Absorption
Students often confuse the materials that can absorb or reduce different types of radiation, thinking that the same material is effective for all types.
To fix this, students should study the specific properties of alpha, beta, and gamma radiation, focusing on which materials are effective for each type. For example, paper can stop alpha particles, while lead is needed for gamma radiation.
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