Question

1 What is the gravitational field strength at a height h above the surface of the Earth? R is the radius of the earth
gR2(R+h)2
gR(R+h)
g(R−h)R
g(R−h)2R2

2 The figure attache illustrates the variation of the gravitational acceleration g’ with distance r from the centre of the Earth. The density of the Earth is assumed to be uniform.
a
is the
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gravitational acceleration at the surface of the earth
gravitational acceleration below the surface of the earth
radius of a point above the surface of the earth
radius of the earth

3 In the figure shown, b re