Question

Statement 1: The earth is slowing down and as a result, the moon is coming nearer to it.

Statement 2: The angular momentum of the earth-moon system is not conserved.

(a) Both statement 1 and 2 are true and statement2 is the correct explanation of the statement1

(b) Both statement 1 and 2 are true but statement 2 is not the correct explanation of the statement1

(c) Statement 1 is true but statement 2 is false

(d) Statement 1 and 2 are false

This question was addressed to me during an online interview.

My question is taken from Translational and Rotational Motion in section System of Particles and Rotational Motion of Engineering Physics I

Answer 1

Correct choice is (d) Statement 1 and 2 are false

For explanation I would say: Both the assertion and reason are false. The earth is not slowing down. The angular momentum of the earth-moon system is conserved.