Question

Two objects of mass $M_1$ and $M_2$ are kept distance ‘2d’ apart. Find the expression for the gravitational force of attraction between them.

• A. $\frac{M_1\times M_2}{d}$
• B. $G\frac{M_1\times M_2}{4d^2}$
• C. $G\frac{M_1\times M_2}{d^2}$
• D. $G\frac{4M_1\times M_2}{d^2}$

Answer 1

The correct option is B $G\frac{M_1\times M_2}{4d^2}$

According to the universal law of gravitation, the magnitude of gravitational force experienced by a body of mass M2 due to another body of mass M1, where distance between them is ‘2d’, is as follows:

$G\frac{M_1\times M_2}{(2d{)}^2}$ or $G\frac{M_1\times M_2}{4d^2}$