The fractional change in the value of free-fall acceleration 'g' for a particle when it is lifted from the surface to an elevation h (h<<R) is
g=GMR2
dgdR = −2GMR3 Putting dR = h we orbit
⇒ dgh = −2GMR21R ⇒ dgh = -2(hR)
Ans. is (B); Change is -ve. That means g decreases.