# Question #61455

##### 1 Answer

Oct 19, 2016

#### Answer:

(b)

#### Explanation:

As per Law of Universal Gravitation the force of attraction between two bodies is given as

Where

It has the value

Comparing it with the expression

we get value of

If

Inserting above value of mass of earth in (1) we get

From above we see that if radius of earth is **increased** by a factor of **decrease** value of

Hence we get