Question

What is the value of universal gravitational constant?

(a) 6.022 x 10^23

(b) 6.67 x 10^-11 N m^2/kg^2

(c) 1.602 x 10^-19 C

(d) 9.81 m/s^2

The question was asked by my college professor while I was bunking the class.

This key question is from The Gravitational Constant in section Gravitation of Physics – Class 11

Answer 1

Correct option is (b) 6.67 x 10^-11 N m^2/kg^2

The best explanation: 6.022 x 10^23 is the Avogadro number.

6.67 x 10^-11 N m^2/kg^2 is the value of universal gravitational constant.

1.602 x 10^-19 C is the charge of a proton.

9.81 m/s^2 is the acceleration due to gravity on the surface of the earth.