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There is no atmosphere on the moon, beca...

There is no atmosphere on the moon, because

A

it is closer to the earth.

B

it revolves round the earth.

C

it gets light from the sun.

D

the escape velocity of gas molecules is lesser than their rms velocity here

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MODERN PUBLICATION-Unit Test - Gravitation-Example
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  2. A missile is launched with a velocity less than the escape velocity. T...

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  3. There is no atmosphere on the moon, because

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  4. A spherically symmetric gravitational system of particles has a mass d...

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  5. The radii of circular orbits of two satellites A and B of the earth ar...

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  6. A satellite S is moving in an elliptical orbit around the earth. The m...

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  7. A geostationary satellite is orbiting the earth at a height 6 R above ...

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  8. A geostationary satellite orbits around the earth in a circular orbit ...

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  9. A satellite is moving with a constant speed v in circular orbit around...

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  10. Which of the following quantities remain constant during their motion ...

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  11. Kepler's second law regarding constancy of aerial velocity of a planet...

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  12. The force keeping the planets in elliptical orbit is

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  13. Gravitational attraction separated by 1 m will be

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  14. the gravity is measured in

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  15. The mass of the moon is about 1.2% of the mass of the earth. Compared ...

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  16. Two bodies of masses m1 and m2 fall from height h1 and h2 respectively...

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  17. The total vertical distance covered by a freely falling body in a give...

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  18. A ball takes t second to fall from a height h1, and 2 t seconds to fal...

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  19. g1 and g2 denote acceleration due to gravity on the surface of the ear...

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  20. Force of gravitational attraction is least

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