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We can shield a charge from electric fie...

We can shield a charge from electric fields by putting it inside a hollow conductor. Can we shield a body from the gravitational influence of nearby matter by putting it inside a hollw sphere or by some other means ?

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No, because gravitational force between two point masses is independent of nature of intervening medium between them.
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Answer the following: (a) You can shield a charge from electrical forces by putting it inside a hollow conductor. Can you shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means? (b) An astronaut inside a small spaceship orbiting around the Earth cannot detect gravity. If the space station orbiting around the Earth has a large size, can he hope to detect gravity? (c) If you compare the gravitational force on the Earth due to the Sun to that due to the Moon, you would find that the Sun’s pull is greater than the Moon’s pull. (You can check this yourself using the data available in the succeeding exercises). However, the tidal effect of the Moon’s pull is greater than the tidal effect of Sun. Why?

How can we shield some instrument from magnetic field? Can we do it by keeping them inside a wooden box or iron box?

Can we determine the gravitational mass of a body inside an artificial satellite?

Assertion (A): Electric field inside a hollow conducting sphere is zero. Reason (R ): Charge is present on the surface of conductor.

MODERN PUBLICATION-GRAVITATION-NCERT FILE (Exemplar Problems (Objective Questions) (Multiple Choice questions) )
  1. Supposing Newton's law of gravitation for gravitation force F(1) and F...

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  2. Which of the following are true ?

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  3. The centre of mass of an extended body on the surface of the earth and...

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  4. Moelcules in air in the atmosphere are attracted by gravitational forc...

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  5. Give one example each of central and non-central force.

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  6. Draw areal velocity time graph for Mars.

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  7. What is the direction of areal velocity of the earth around the sun?

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  8. How is the gravitational force between two point masses affected when ...

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  9. Is it possible for a body to have inertia but no weight?

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  10. We can shield a charge from electric fields by putting it inside a hol...

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  11. An astronaut inside a small spaceship orbitting around the earth canno...

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  12. The gravitational force between a hollow spherical shell (of radius R ...

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  13. Out of aphelion and perihelion, where is the speed of the earth more a...

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  14. What is the angle between the equatorial plane and the orbital plane o...

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  15. Mean solar day is the time interval between two successive noon when s...

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  16. Two identical heavy spheres are separated by a distance 10 times their...

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  17. Show the nature of the following graph for a satellite orbiting the ea...

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  18. Shown are several curves. Explain with reason, which ones amongst them...

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  19. An object of mass m is raised from the surface of the earth to a heigh...

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  20. A mass m is placed at P a distance h along the normal through the cent...

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