NEET Solved Paper 2019 Question 19

Question: A body weighs 200 N on the surface of the earth. How much will it weigh half way down to the centre of the earth? [NEET 5-5-2019]

Options:

A) 250 N

B) 100 N

C) 150 N

D) 200 N

Show Answer

Answer:

Correct Answer: B

Solution:

$ g’=\frac{gr}{R}=\frac{gR}{2R}=\frac{g}{2} $ So weight will be 100 N.