Properties Of Solids And Liquids Question 516
Question: Two thermometers are used to record the temperature of a room. If the bulb of one is wrapped in wet hanky [AFMC 1997]
Options:
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
C) The temperature recorded by dry-bulb thermometer will be greater than that recorded by the other
D) None of the above
Show Answer
Answer:
Correct Answer: C
Solution:
Due to evaporation cooling is caused which lowers the temperature of bulb wrapped in wet hanky.
