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JEEMAIN and NEET
>>
Physics
>>
Class11
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Gravitation
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Q)
Speed of a planet in an elliptical orbit with semi major axis 'a' about sum of mass M at a distance r from the sun is
(
a
)
√
G
M
(
2
r
−
1
a
)
(
b
)
√
G
M
(
1
r
−
1
a
)
(
c
)
√
G
M
(
1
r
−
2
a
)
(
d
)
√
G
M
r
2
a
2
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