1. | \(\dfrac{2 G m M}{3 R} \) | 2. | \(\dfrac{G m M}{2 R} \) |
3. | \(\dfrac{G m M}{3 R} \) | 4. | \( \dfrac{5 G m M}{6 R}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPrefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA geostationary satellite is orbiting the earth at a height of \(5R\) above the surface of the earth, \(R\) being the radius of the earth. The time period of another satellite in hours at a height of \(2R\) from the surface of the earth is:
1. \(5\)
2. \(10\)
3. \(6\sqrt2\)
4. \(\frac{6}{\sqrt{2}}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe radii of circular orbits of two satellites A and B of the earth are \(4R\) and \(R\) respectively. If the speed of satellite A is \(3v,\) then the speed of satellite B will be:
1. \(3v/4\)
2. \(6v\)
3. \(12v\)
4. \(3v/2\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe additional kinetic energy to be provided to a satellite of mass \(m\) revolving around a planet of mass \(M,\) to transfer it from a circular orbit of radius \(R_1\) to another of radius \(R_2\) (\(R_2>R_1\)) is:
1. \(GmM\)
2. \(2GmM\)
3.
4. \(GmM\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo satellites of Earth, \(S_1\), and \(S_2\), are moving in the same orbit. The mass of \(S_1\) is four times the mass of \(S_2\). Which one of the following statements is true?
1. | The time period of \(S_1\) is four times that of \(S_2\). |
2. | The potential energies of the earth and satellite in the two cases are equal. |
3. | \(S_1\) and \(S_2\) are moving at the same speed. |
4. | The kinetic energies of the two satellites are equal. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFor a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is:
1.
2. \(2\)
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology