GravitationHard
Question
The magnitude of the gravitational field at distance r1 and r2 from the centre of a uniform sphere of radius R and mass M are F1 and F2 respectively. Then
Options
A.
if < R and <
if < R and <B.
if > R and >
if > R and >C.
if r1 < R and r2 < R
if r1 < R and r2 < RD.
if r1 < R and r2 < R
if r1 < R and r2 < RSolution
For r ≤ R, F = 
. r or F ∝ r
for r1 < R and r2 < R
and for r ≥ R, F =
. r or F ∝ 
i.e.,
for r1 > R and r1 > R.
. r or F ∝ r for r1 < R and r2 < R and for r ≥ R, F =
. r or F ∝ i.e.,
for r1 > R and r1 > R.Create a free account to view solution
View Solution FreeMore Gravitation Questions
Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will :-...If a mass of a body is M on the earth surface, the mass of the same body on moon surface will be...A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very compared to the mass ...A long straight wire of radius a carries a steady current i. the current is uniformly distributed across its cross secti...Imagine a new planet having the same density as that of Earth but it is 3 times bigger than the Earth in size. If the ac...