Gravitation Question 61
Question: Weight of a body of mass m decreases by 1% when it is raised to height h above the earth’s surface. If the body is taken to a depth h in a mine, change in its weight is[KCET 2003; MP PMT 2003]
Options:
A) 2% decrease
B) 0.5% decrease
C) 1% increase
D) 0.5% increase
Show Answer
Answer:
Correct Answer: B
Solution:
For height $ [\frac{\Delta g}{g}\times 100 percentage=\frac{2h}{R}=1percentage;] $
For depth $ [\frac{\Delta g}{g}\times 100percentage=\frac{d}{R}=\frac{h}{R}=\frac{1}{2}percentage=0.5percentage] $
