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JEE Main 2024 (8 Apr, Shift 2) · Satellites - Orbital Velocity & Period

Satellites - Orbital Velocity & Period question from JEE Main 2024 (8 Apr, Shift 2)

Q18JEE Main 2024 · 8 APR · SHIFT 2Easy

Satellites - Orbital Velocity & Period

Two satellite A and B go round a planet in circular orbits having radii 4R and R respectively. If the speed of $A$ is $3v$ , the speed of $B$ will be:

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Answer: (a)

Orbital speed $v \propto \frac{1}{\sqrt{r}}$ .
$\frac{v_B}{v_A} = \sqrt{\frac{4R}{R}} = 2$
$v_B = 2 \times 3v = 6v$
So the answer is (a) $6v$ .

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