Assertion: A planet moves faster, when it is closer to the sun in its orbit and vice-versa. Reason: Orbital velocity in orbit of planet is constant.

Question

Assertion: A planet moves faster, when it is closer to the sun in its orbit and vice-versa. Reason: Orbital velocity in orbit of planet is constant. (A) If both Assertion and Reason are true and Reason is the correct explanation of Assertion (B) If the Assertion and Reason are true but Reason is not correct explanation of Assertion (C) If Assertion is true but, Reason is false (D) If Assertion is false but, Reason is true

Tardigrade Admin · Accepted Answer

As the distance from centre of earth decreases, acceleration due to gravity and at the centre of earth it becomes zero. g'=g(1-(d/R)). If d=R then g'=0

Q. Assertion : A planet moves faster, when it is closer to the sun in its orbit and vice-versa.
Reason : Orbital velocity in orbit of planet is constant.

If both Assertion and Reason are true and Reason is the correct explanation of Assertion

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

If Assertion is true but, Reason is false

If Assertion is false but, Reason is true

As the distance from centre of earth decreases, acceleration due to gravity and at the centre of earth it becomes zero. $g^{'} = g (1 - \frac{d}{R})$ . If $d = R$ then $g^{'} = 0$

Q. Assertion : A planet moves faster, when it is closer to the sun in its orbit and vice-versa. Reason : Orbital velocity in orbit of planet is constant.