A) X-rays are suitable for radar system and aircraft navigation.
B) Water molecules readily absorb infrared radiation and their thermal motion increases.
C) Microwaves are produced in Coolidge tube
D) Gamma radiations generate due to electron transitions between upper and lower energy levels of heavy element when excited by electron bombardment
Correct Answer: B
Solution :
Option [b] is correct. Explanation: Water molecules readily infrared radiation and their thermal motion increases and therefore, they heat their surroundings.
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