Q. No.| 1. | \(-Gm \over {l}^2\) | 2. | \(-Gm^2 \over 2{l}\) |
| 3. | \(-2Gm^2 \over {l}\) | 4. | \(-3Gm^2 \over {l}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(-E_0\)
2. \(1.5E_0\)
3. \(2E_0\)
4. \(E_0\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA satellite of mass \(m\) is orbiting the earth (of radius \(R\)) at a height \(h\) from its surface. What is the total energy of the satellite in terms of \(g_0?\)
(\(g_0\) is the value of acceleration due to gravity at the earth's surface)
| 1. | \(\frac{mg_0R^2}{2(R+h)}\) | 2. | \(-\frac{mg_0R^2}{2(R+h)}\) |
| 3. | \(\frac{2mg_0R^2}{(R+h)}\) | 4. | \(-\frac{2mg_0R^2}{(R+h)}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | \(\frac{GMm}{12R} \) | 2. | \(\frac{GMm}{R} \) |
| 3. | \(\frac{GMm}{8 R} \) | 4. | \(\frac{GMm}{2R}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA body of mass \(m\) is taken from the Earth’s surface to the height equal to twice the radius \((R)\) of the Earth. The change in potential energy of the body will be:
| 1. | \(\frac{2}{3}mgR\) | 2. | \(3mgR\) |
| 3. | \(\frac{1}{3}mgR\) | 4. | \(2mgR\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe change in the potential energy, when a body of mass \(m\) is raised to a height \(nR\) from the Earth's surface is: (\(R\) = Radius of the Earth)
1. \(mgR\left(\frac{n}{n-1}\right)\)
2. \(nmgR\)
3. \(mgR\left(\frac{n^2}{n^2+1}\right)\)
4. \(mgR\left(\frac{n}{n+1}\right)\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | \(mgR_e\) | 2. | \(2mgR_e\) |
| 3. | \(\frac{mgR_e}{5}\) | 4. | \(\frac{mgR_e}{16}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | \(-0.5\) MJ | 2. | \(-25\) MJ |
| 3. | \(-5\) MJ | 4. | \(-2.5\) MJ |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThree equal masses \(m\) are placed at the three vertices of an equilateral triangle of side \(r\). Work required to double the separation between masses will be:
| 1. | \(Gm^2\over r\) | 2. | \(3Gm^2\over r\) |
| 3. | \({3 \over 2}{Gm^2\over r}\) | 4. | None of the above |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| Assertion (A): | A satellite moving in a circular orbit around the earth has a total energy \(E_0,\) then its potential energy is \(-E_0.\) |
| Reason (R): | Potential energy of the body at a point in a gravitational field of orbit is \(\frac{-GMm}{R}\). |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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