Choose the correct statements from the following:

Options

A. The magnitude of the gravitational force between two bodies of mass `1 kg` each and separated by a distance of `1 m` is `9.8 N`.
B. The higher the value of the escape velocity for a planet, the higher is the abundance of the lighter gases in its atmosphere.
C. The gravitational force of attraction between two bodies of ordinary mass is not noticeable because the value of the gravitational constant is extremely small.
D. Force of friction arises due to gravitational attraction.

Answer

B, C

Explanation

Statement a. is incorrect the magnitude of the force is `6.67xx10^(-11)N`. Statement b is correct. If the escape velocity for a planet is high, gases are not able to escape. Statement c is also correct. Statement d is incorrect, force of friction arises due to electrical forces. Hence, correct choices are b and c.