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] $



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