Properties Of Solids And Liquids Question 518
Question: A centigrade and a Fahrenheit thermometer are dipped in boiling water. The water temperature is lowered until the Fahrenheit thermometer registers 140°. What is the fall in temperature as registered by the Centigrade thermometer [CBSE PMT 1992; AIIMS 1998]
Options:
A) 30°
B) 40°
C) 60°
D) 80°
Show Answer
Answer:
Correct Answer: C
Solution:
$ \frac{C}{5}=\frac{F-32}{9} $
therefore $ \frac{C}{5}=\frac{(140-32)}{9} $
therefore $ C=60{}^\circ $
