Nuclear Radiation | Practice MCQs Physics for Mdcat By Engr Kamran Soomro | mosaicbro.com

Nuclear Radiation | Practice MCQs Physics for Mdcat By Engr Kamran Soomro

7 of 83 questions (Page 4 of 12)

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22 22. Which of the following is used to produce ions of high energy?
Correct Answer: A
Explanation: Cyclotrons accelerate ions using oscillating electric fields.
23 23. A solid state detector basically consists of a:
Correct Answer: B
Explanation: Pn-junction diodes are key components in solid-state detectors.
24 24. In which of the following the paths of $\alpha$ and $\beta$-particles are observed:
Correct Answer: C
Explanation: Cloud chambers make particle tracks visible.
25 25. Geiger counter is not suitable for:
Correct Answer: B
Explanation: Dead time limits fast counting rates.
26 26. Which of the following can be used for fast counting and operating at a low voltage:
Correct Answer: D
Explanation: Solid-state detectors offer fast response and low-voltage operation.
27 28. Which of the following is the most useful tracer:
Correct Answer: C
Explanation: Carbon-14 is widely used in biological and archaeological tracing.
28 29. An $\alpha$-particle ionizes the atom:
Correct Answer: B
Explanation: $\alpha$-particles ($+2e$) attract and remove electrons from atoms.
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