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 5 of 12)

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29 30. A-3 Mev $\beta$-particle can penetrate through an aluminium foil about:
Correct Answer: C
Explanation: 3 MeV $\beta$-particles penetrate ~6.5 mm of aluminum.
30 31. The range of 7.7 Mev $\alpha$-particle in air is about:
Correct Answer: D
Explanation: 7.7 MeV $\alpha$-particles travel ~7 cm in air.
31 32. $\alpha$-particle can penetrate in aluminium foil of:
Correct Answer: C
Explanation: $\alpha$-particles are stopped by ~0.04 mm aluminum.
32 33. Thyroid concave is cured by:
Correct Answer: C
Explanation: Iodine-131 selectively targets thyroid tissue.
33 34. The $\beta$-particle has:
Correct Answer: A
Explanation: Light mass causes frequent scattering and erratic tracks.
34 35. Alpha radiation are advised for the treatment of skin of a patient because:
Correct Answer: C
Explanation: Low penetration confines damage to skin surface.
35 36. $\beta$-particle has penetration power:
Correct Answer: A
Explanation: $\beta$-particles penetrate ~100x farther than $\alpha$-particles.
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