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JEE MAIN 2021
26-02-2021 S1
Question
Find the gravitational force of attraction between the ring and sphere as shown in the diagram, where the plane of the ring is perpendicular to the line joining the centres. If $\sqrt{8} R$ is the distance between the centres of a ring (of mass 'm') and a sphere (mass 'M') where both have equal radius 'R'.
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Select the correct option:
A
$\frac{\sqrt{8}}{9} \cdot \frac{\mathrm{GmM}}{\mathrm{R}}$
B
$\frac{2 \sqrt{2}}{3} \cdot \frac{\mathrm{GMm}}{\mathrm{R}^2}$
C
$\frac{1}{3 \sqrt{8}} \cdot \frac{\mathrm{GMm}}{\mathrm{R}^2}$
D
$\frac{\sqrt{8}}{27} \cdot \frac{\mathrm{GmN}}{\mathrm{R}^2}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
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Physics
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