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MHT CET 2025 (22 Apr, Shift 1) · Satellites - Orbital Velocity & Period

Satellites - Orbital Velocity & Period question from MHT CET 2025 (22 Apr, Shift 1)

Q9MHT CET 2025 · 22 APR · SHIFT 1Easy

Satellites - Orbital Velocity & Period

Two satellites P and Q go round a planet in circular orbits having radii ' $3R$ ' and ' $R$ ' respectively. If the speed of satellite $P$ is ' $2V$ ', the speed of the satellite $Q$ will be

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Answer: (a)

Orbital speed $v \propto \frac{1}{\sqrt{r}}$ .
$\frac{v_Q}{v_P} = \sqrt{\frac{3R}{R}} = \sqrt{3}$
$v_Q = 2V\sqrt{3}$
So the answer is (a) $2\sqrt{3}\,V$ .

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