Question

Statement 1: If ice caps of the pole melt, the day length will shorten.

Statement 2: Ice flows towards the equator and decreases the moment of inertia of the earth and hence increases the frequency of rotation of the earth.

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

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

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

Answer 1

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

Best explanation: Both the assertion and reason are false. As the polar ice melts, water so formed flows towards the equator. This increases the moment of inertia. To conserve angular momentum, frequency of rotation decreases and the day length becomes longer.