JEE Mains · Physics · STD 11 - Gravitation
- JEE Mains 2022
- Medium
- Numerical
Two satellites \(S _{1}\) and \(S _{2}\) are revolving in circular orbits around a planet with radius \(R _{1}=3200 \,km\) and \(R _{2}=800\, km\) respectively. The ratio of speed of satellite \(S_{1}\) to the speed of satellite \(S_{2}\) in their respective orbits would be \(\frac{1}{ x }\) where \(x =\)
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Answer & Solution
Correct Answer
(C) \(2\)
Step-by-step Solution
Detailed explanation
\(V =\sqrt{\frac{ GM }{ r }}\)
\(\Rightarrow \frac{ V _{1}}{ V _{2}}=\sqrt{\frac{800}{3200}}=\frac{1}{2}\)
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