Question

Assertion: Newton’s third law applies to all types of force e.g. Gravitation,

Electric, Magnetic etc.

Reason: Newton’s third law of motion is applicable only when bodies are in

motion.A) If both assertion and reason are true and the reason is the correct

explanation of the assertion.

B) If both the assertion and reason are true but reason is not the correct

explanation of the assertion.

C) If assertion is True but reason is False.

D) If assertion and reason both are False.

E) If assertion is False but reason is True.​

Answer 1

Answer: Option E

Explanation: Assertion is false as newton third law can act even body is stationary. Consider an example of rope pulling.

Reason

ReasonAccording to Newton third law For every action there is a reaction pair which acts on all forces so reason is true.

Answer 2

The correct option is - C) If assertion is True but reason is False.

Newton's third law of motion is -

For every action, there is always an equal and opposite reaction.

Assertion: Newton’s third law applies to all types of force e.g. Gravitation, Electric, Magnetic etc.

If a gravitational force is exerted to a body in downwards direction, then it produces a normal reaction of equal magnitude in upwards direction.

All the laws of Newton are universal, and hence, they are applicable to types of forces.

Thus, the above statement is correct.

Reason: Newton’s third law of motion is applicable only when bodies are in motion.

This statement is false. Newton's third law of motion is applicable to all the bodies, even stationary.

For example, if a ball is resting on the ground. Then gravitation force and normal reaction both are acting o it. Since, they are of equal magnitude and opposite direction, the net force is zero and the body is stationary. But, the law is valid in this case too.