Question

MISCELLANEOUS QUESTIONS
Two identical spheres of radius R made of the same material are kept at a distance d apart. Then the gravitational attraction between them is proportional to.

• A. $d^{-2}$
• B. $d^2$
• C. $d^4$
• D. $d$

Answer 1

The correct option is A $d^{-2}$

According to Newton's law of gravitation

as we know

$F=\frac{G{m}_1\times m_2}{r^2}$

here $r=d$

then

$F$ is directly proportional $\frac{1}{d^2}$

then similarly $F=d^{-2}$