Question

Force of gravitation between two masses is found to be $F$ in vacuum. If both the masses are dipped in water at same distance then, new force will be

• A. greater than $F$.
• B. less than $F$.
• C. equal to $F$.
• D. cannot say

Answer 1

The correct option is C equal to $F$.

Force of gravitation is independent of the medium. It means, force of gravitation remains constant in every medium.

Now, if force of gravitation between two masses is found to be $F$ in vaccum then force of gravitation will be same when masses are kept in water at a same distance.

Hence, option (c) is the correct answer.

Why this question: To make students familiar with the dependence of gravitational force on mediums.