Assertion: If polar ice melts, days will be longer. Reason: Moment of inertia increases and thus angular velocity decreases.

Question

Assertion: If polar ice melts, days will be longer. Reason: Moment of inertia increases and thus angular velocity decreases. (A) Both Assertion and Reason are true and Reason is the correct explanation of Assertion (B) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion (C) Assertion is true but Reason is false (D) Assertion is false but Reason is true

Tardigrade Admin · Accepted Answer

As the polar ice melts, it will flow towards the equator thereby increasing the moment of inertia of earth. Hence the angular velocity decreases. So, the day length will become longer.

Q. Assertion: If polar ice melts, days will be longer. Reason: Moment of inertia increases and thus angular velocity decreases.

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion

Assertion is true but Reason is false

Assertion is false but Reason is true

As the polar ice melts, it will flow towards the equator thereby increasing the moment of inertia of earth. Hence the angular velocity decreases. So, the day length will become longer.

Q. Assertion: If polar ice melts, days will be longer.
Reason: Moment of inertia increases and thus angular velocity decreases.