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 11 of 12)

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71 76. A Geiger counter counts radioactive particles by:
Correct Answer: C
Explanation: Detects charge pulses from ionized gas.
72 77. A device for actually observing the paths of alpha and beta particles is called a:
Correct Answer: D
Explanation: Cloud chambers visualize particle tracks.
73 78. For producing one ion pair during ionization the energy used up is:
Correct Answer: C
Explanation: ~35 eV is the average energy to create an ion pair in air.
74 79. Geiger counter is widely used in:
Correct Answer: D
Explanation: Standard tool for detecting radioactivity.
75 80. Specially designed solid state detector can be used to detect:
Correct Answer: C
Explanation: Often optimized for $\gamma$-ray detection.
76 81. Geiger counter was designed by:
Correct Answer: D
Explanation: Hans Geiger and Walther Müller developed the Geiger-Müller tube.
77 82. By producing radiographs $\gamma$-rays can be used to detect:
Correct Answer: D
Explanation: Industrial radiography inspects internal structures.
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