Entry Test MCQ :: Nuclear Physics
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61. |
Pair production can take place only with |
A. |
X-rays |
B. |
?-rays |
C. |
UV-rays |
D. |
IR-rays |
Answer: Option B
Explanation:
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62. |
A device for producing high velocity nuclei is |
A. |
cloud chamber |
B. |
linear accelerator |
C. |
a mass spectrograph |
D. |
Wilson cloud chamber |
Answer: Option B
Explanation:
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63. |
Which of the following will be a better shield against ?-rays? |
A. |
ordinary water |
B. |
heavy water |
C. |
lead |
D. |
aluminum |
Answer: Option C
Explanation:
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64. |
The maximum safe limit dose for persons working in nuclear power station are |
A. |
1 rem per week |
B. |
5 rem per week |
C. |
4 rem per week |
D. |
3 rem per week |
Answer: Option B
Explanation:
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65. |
Radiations are used for the treatment of skin of a patient is |
Answer: Option B
Explanation:
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