Question

Radius of earth is around 6000 km. The weight of body at height of 6000 km from earth surface becomes

• A. Half
• B. One-fourth
• C. One third
• D. No change

Answer 1

Answer: (B)

One-fourth

Answer 2

$g ^ { \prime } = g \left( \frac { R } { R + h } \right) ^ { 2 }$⇒ when $h = R$ then $g ^ { \prime } = \frac { g } { 4 }$

So the weight of the body at this height will become one-fourth.