JEE Main 2022 · 25 Jun · Shift 2 · Physics Q55

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PhysicsInteger+4 / -1Question 55 of 90

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 $\dfrac1x$ where $x=$ ______.

Your answer

Answer and worked solution

Official answer: 2

Orbital speed $v=\sqrt{\dfrac{GM}r}$ , so $\dfrac{v_1}{v_2}=\sqrt{\dfrac{800}{3200}}=\dfrac12$ : $x=2$ .

Answer: 2

Topics:Satellites and orbital motion

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JEE Main 2022 · 25 Jun · Shift 2, Physics question 55