The dimensional formual for gravitational constnat G is

Options

A. `[ML^(3)T^(-2)]`
B. `[M^(-1)L^(3)T^(-2)]`
C. `[M^(-1)L^(-3)T^(-2)]`
D. `[ML^(-3)T^(2)]`

Answer

B

Explanation

`F=(Gm_(1)m_(2))/(r^(2))`
`G=(Fxxr^(2))/(m_(1)m_(2))`
`=(MLT^(-2)xxL^(2))/(M^(2))=M^(-1)L^(3)T^(-2)`