If radius of earth contracts 2% and its mass remains same, then weight of body at earth surface

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7.Gravitation

easy

If radius of the earth contracts $2\%$ and its mass remains the same, then weight of the body at the earth surface

A

Will decrease

B

Will increase

C

Will remain the same

D

None of these

Solution

(b)$g \propto \frac{1}{{{R^2}}}$. 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 $4\%$

Standard 11

Physics

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