Question

Which of the following statements are true about acceleration due to gravity \( g \)?
A. \( g \) is greater at poles.
B. \( g \) decreases with height.
C. \( g \) is same all over Earth.
D. \( g \) is maximum at centre of Earth.

• A. A and B
• B. A and D
• C. B and C
• D. C and D

Hint:

Understand variation of \( g \): max at poles, decreases with altitude, and becomes zero at centre of Earth.

Answer 1

The Correct Option is A

- At poles, \( g \) is more due to lesser centrifugal force.
- \( g \) decreases with height as \( g \propto \frac{1}{(R+h)^2} \)
- C is false: \( g \) varies over Earth. D is false: \( g = 0 \) at centre of Earth.