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JEE Main 9 Apr 2019 Paper 1 Solved Paper
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© examsnet.com
Question : 2
Total: 90
A solid sphere of mass ‘M’ and radius ‘a’ is surrounded by a uniform concentric spherical shell of thickness 2a and mass 2M. The gravitational field at distance ‘3a’ from the centre will be:
2
G
M
3
a
2
G
M
9
a
2
2
G
M
9
a
2
G
M
3
a
2
Validate
Solution:
Field at
P
=
G
M
(
3
a
)
2
+
G
(
2
M
)
(
3
a
)
2
Field
=
G
M
3
a
2
© examsnet.com
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