Which of the following statement is correct regarding the universal gravitational constant G ?

Options

A. G has same value in all system of units.
B. The value of G is same everywhere in the universe.
C. The value of G was first experimentally determined by Johannes Kepler
D. G is a vector quantity.

Answer

B

Explanation

(b) G has different value in different system of units.
In SI system the value of G is `6.67xx10^(-11) N m^(2)kg^(-2)` whereas in CGS its value is `6.67xx10^(-8)` dyne `cm^(2) g^(-2)`. The value of G is same throughout the universe.
The value of G was first experimentally determined by English scientist Henry Cavendish.
G is a scalar quantity.