Question

Weight of a body of mass m decreases by 1% when it is raised to height h above the earth's surface. If the body is taken to a depth h in a mine, change in its weight is 

 (a) 2% decrease 

(b) 0.5% decrease 

(c) 1% increase 

(d) 0.5% increase

Answer 1

Correct option (b) 0.5% decrease

Explanation:

Percentage change in g when the body is raised to height

Percentage change in g when the body is taken into depth

∴ Percentage decrease in weight