- 1(current)
Q. No.1. \(+\frac{Gm}{6R}\)
2. \(-\frac{GMm}{2R}\)
3. \(-\frac{GMm}{6R}\)
4. \(\frac{GMm}{2R}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(1.6 \times 10^3~\text{km}\)
2. \(3.2 \times 10^3~\text{km}\)
3. \(6.4 \times 10^3~\text{km}\)
4. \(1.28 \times 10^4~\text{km}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo planets have masses \(M\) and \(16M\) and their radii are \(a\) and \(2a\), respectively. The separation between the centres of the planets is \(10a\). A body of mass \(m\) is fired from the surface of the larger planet towards the smaller planet along the line joining their centres. For the body to be able to reach at the surface of smaller planet, the minimum firing speed needed is:
1. \( \sqrt{\frac{G M^2}{m a}} \)
2. \( \frac{3}{2} \sqrt{\frac{5 G M}{a}} \)
3. \( 4 \sqrt{\frac{G M}{ma}} \)
4. \(4 \sqrt{\frac{G M}{a}} \)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
1. \( -\frac{{Gm}}{{d}}[(4+\sqrt{2}) {m}+4 \sqrt{2} {M}] \)
2. \(-\frac{{Gm}}{{d}}[(4+\sqrt{2}) {M}+4 \sqrt{2}{m}] \)
3. \( -\frac{{Gm}}{{d}}\left[3 {m}^2+4 \sqrt{2}{M}\right] \)
4. \(-\frac{{Gm}}{{d}}\left[6{m}^2+4 \sqrt{2}{M}\right]\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology(take the radius of the Earth \(R=6400~\text{km}\) and \(g=10~\text{m/s}^2\) )
1. \(800~\text{km}\)
2. \(1600~\text{km}\)
3. \(2133~\text{km}\)
4. \(4800~\text{km}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology(Given: \(g=10\) ms–2 and radius of Earth \(=6400\) km)
1. \(48\) MJ
2. \(24\) MJ
3. \(36\) MJ
4. \(12\) MJ
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \({\dfrac{1}{3}{mgR}_{e}}\)
2. \({\dfrac{1}{6}{mgR}_{e}}\)
3. \({\dfrac{1}{2}{mgR}_{e}}\)
4. \({\dfrac{1}{4}{mgR}_{e}}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology(Where, \(M_e\)=mass of earth, \(R_e\)= radius of the earth.)
1. \(\sqrt{\left[{\frac{2{GM}_{e}}{{R}_{e}}}\right]}\)
2. \(\sqrt{\left[{\frac{{GM}_{e}}{2{R}_{e}}}\right]}\)
3. \(\sqrt{\left[{\frac{{GM}_{e}}{{R}_{e}}}\right]}\)
4. \(\sqrt{\left[{\frac{2{GM}_{e}}{3{R}_{e}}}\right]}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. \(\sqrt{gR}\)
2. \(\sqrt{{{gR}\over{2}}}\)
3. \(\sqrt{2gR}\)
4. \(\sqrt{4gR}\)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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