Gravitation Question 35

Question: If radius of the earth contracts 2% and its mass remains the same, then weight of the body at the earth surface [CPMT 1997; KCET (Engg./Med.) 2001]

Options:

A) Will decrease

B) Will increase

C) Will remain the same

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

$ [g\propto \frac{1}{R^{2}}] $ .

If radius of earth decreases by 2% then g will increase by 4% i.e. weight of the body at earth surface will increase by 4%



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