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Class 11 NEET Physics Gravitation Questions
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© examsnet.com
Question : 39
Total: 83
If
v
e
is escape velocity and
v
o
is orbital velocity of a satellite for orbit close to the earth’s surface, then these are related by
(2012 Mains)
v
o
=
√
2
v
e
v
o
=
v
e
v
e
=
√
2
v
o
v
e
=
√
2
v
o
Validate
Solution:
Escape velocity,
v
e
=
√
2
G
M
R
........(i)
where M and R be the mass and radius of the earth respectively. The orbital velocity of a satellite close to the earth’s surface is
v
o
=
√
G
M
R
...........(ii)
From (i) and (ii), we get
v
e
=
√
2
v
o
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