A satellite is moved outward in two steps: first from a circular orbit of radius to

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A satellite is moved outward in two steps: first from a circular orbit of radius

2R_{\text{E}}

3R_{\text{E}}

, and then from

3R_{\text{E}}

4R_{\text{E}}

. If the external work required for the first step is

W_1

and for the second step is

W_2

, which relation is correct? (a)

W_1 = W_2

(b)

W_1 = \dfrac{1}{2} W_2

(c)

W_1 = 2 W_2

(d)

W_1 = 3 W_2