Question

Assertion : If ice cap of the pole melts, the day length will shorten.

Reason : Ice will flow towards the equator and decrease the moment of inertia of the Earth. This increases the frequency of rotation of the Earth

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

Correct option (d) A and R are false

Explanation :

If the ice cap of the poles melts, ice will flow towards the equator, and will increase the moment of inertia of the earth thereby decreasing its frequency of rotation. Due to decrease of the frequency of rotation, the day length increases.