Physics · 2021
JEE Main · 25 February 2021, Shift 1 · Q6
Two satellites A and B of masses 200 kg and 400 kg are revolving round the earth at height of 600 km and 1600 km respectively. If T_A and T_B are the…
Two satellites A and B of masses $\displaystyle 200$ kg and $\displaystyle 400$ kg are revolving round the earth at height of $\displaystyle 600$ km and $\displaystyle 1600$ km respectively.
If $\displaystyle \mathrm{T}_{\mathrm{A}}$ and $\displaystyle \mathrm{T}_{\mathrm{B}}$ are the time periods of A and B respectively then the value of $\displaystyle \mathrm{T}_{\mathrm{B}}-\mathrm{T}_{\mathrm{A}}$ :
[ Given : radius of earth $\displaystyle =6400 \mathrm{~km}$, mass of earth $\displaystyle =6 \times 10^{24} \mathrm{~kg}$ ]
[ Given : radius of earth $\displaystyle =6400 \mathrm{~km}$, mass of earth $\displaystyle =6 \times 10^{24} \mathrm{~kg}$ ]Official answer
(1)
$\displaystyle 1.33 \times 10^3 \mathrm{~s}$
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JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.