Question

"The height from Earth's surface at which acceleration due to gravity becomes \( g/4 \), where \( g \) is acceleration due to gravity on the surface of Earth and \( R \) is the radius of Earth?"

• A. \( \sqrt{2}R \).
• B. \( R \).
• C. \( R/\sqrt{2} \).
• D. \( 2R \).

Hint:

The acceleration due to gravity decreases with height and follows the relation \( g_h = g (R / (R + h))^2 \).