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10.1, thermonetry,thermal expansion and calorimetry — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics10.1, thermonetry,thermal expansion and calorimetry1 Mark
MCQ
Two thermometers are used to record the temperature of a room. If the bulb of one is wrapped in wet hanky
  • A
    The temperature recorded by both will be same
  • B
    The temperature recorded by wet-bulb thermometer will be greater than that recorded by the other
  • ✓
    The temperature recorded by dry-bulb thermometer will be greater than that recorded by the other
  • D
    None of the above
✓

Answer

Correct option: C.
The temperature recorded by dry-bulb thermometer will be greater than that recorded by the other
c
(c)Due to evaporation cooling is caused which lowers the temperature of bulb wrapped in wet hanky.

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