Question

The value of universal gravitational constant $G$ is-

• A. $6.67\times {10}^{-11}\frac{N{m}^2}{kg}$
• B. $6.67\times {10}^{-11}\frac{N{m}^2}{k{g}^2}$
• C. $66.7\times {10}^{-11}\frac{N{m}^2}{k{g}^2}$
• D. $66.7\times {10}^{-11}\frac{N{m}^2}{kg}$

Answer 1

The correct option is B $6.67\times {10}^{-11}\frac{N{m}^2}{k{g}^2}$

Gravitational force between two objects of mass $m_1$ and $m_2$ separated by a distance $r$, $F=\frac{G{m}_1{m}_2}{r^2}$

$⟹$ $G=\frac{F{r}^2}{m_1{m}_2}$

Value of universal gravitational constant $G$ is $6.67\times {10}^{-11}$ $\frac{N{m}^2}{k{g}^2}$.