A uniform ring of mass m and radius r is placed directly above a uniform sphere of mass M…
Physics · JEE Advanced · NTA Exams — Gravitation
A uniform ring of mass m and radius r is placed directly above a uniform sphere of mass M and of equal radius. The centre of the ring is at a distance\(\sqrt{3} r\)from the centre of the sphere. The gravitational force exerted by the sphere on the ring will be
- \(\frac{\text { GMm }}{8 r^{2}}\)
- \(\frac{\text { GMm }}{4 r^{2}}\)
- \(\frac{\sqrt{3} \text { GMm }}{8 r^{2}}\)
- \(\frac{\text { GMm }}{16 r^{2}}\)
Answer
(C) 3 GMm 8 r^ 2
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Suppose a vertical tunnel is dug along the diameter of earth assumed to be a sphere of uniform mass having…
- The ratio of the radii of planets A and B is k 1 and ratio of acceleration due to gravity on them is k 2 …
- Two identical thin uniform rods of mass m and length L are placed as shown in figure. The gravitational…
- A satellite is orbiting the earth in a circular orbit of radius r. Its
- Two bodies, each of mass M , are kept fixed with a separation 2 L . A particle of mass m is projected from…
- At what height above the earth’s surface is the acceleration due to gravity 1% less than its value at the…
- A person sitting in a chair in a satellite feels weightless because
- The satellites when launched from earth are not given the orbital velocity initially, in practice, a…