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Physics
A small satellite is revolving near earths surface. Its orbital velocity will be nearly:
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Q. A small satellite is revolving near earths surface. Its orbital velocity will be nearly:
JIPMER
JIPMER 2001
Gravitation
A
11.2 km/sec
56%
B
6 km/sec
6%
C
4 km/sec
5%
D
8 km/sec
34%
Solution:
From the formula the orbital velocity near earth is $ =\sqrt{Rg} $ $ =\sqrt{6.4\times {{10}^{6}}\times 10}=8km\text{/}\sec $