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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 ?

Text Solution

Verified by Experts

No, because gravitational force between two point mass bodies is independent of the interventing medium between them. It is due the above reason, we cannot shiled a body from the gravitational influence of nearby matter by putting it either inside a hollow sphere or by some other means.
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Explore conceptually related problems

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?

Answer the followings, (a)You can shield a change 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 delect gravity. If the space station orbiting around the earth has a large size, can he hope to detect gravity ? (c ) If you compare the gavitational force on the earth due to sun to that due to the moon, you would find that the sun's pull is greater than the moon's pull. However, the effect of the moon's pull is greater than tidal effect of sun. Why?

Knowledge Check

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

    A
    Both A and R are true and R is the correct explanation of A
    B
    Both A and R are true but R is NOT the correct explanation of A
    C
    A is true but R is false
    D
    A is false and R is True

  • A sensitive magnetic instrument can be shielded very effectively from outside magnetic fields by placing it inside a box of

    A
    Teak wood
    B
    Plastic material
    C
    Soft iron of high permeability
    D
    A metal of high conductivity

  • A sensitive magnetic instrument can be shielded very effectively from outside magnetic fields by placing it inside a box of

    A
    wood
    B
    plastic
    C
    metal of high ocnductivity
    D
    soft iron of high permeability

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    We know that the gravitational field strength is zero insdie a spereical shell of matter. The electrical field strenght is zero not only insdie an isolated charged spherical conductor but inside an isolated cunductor of any shap . Is the gravitational field strength inside, say, a cubical shell of matter zer? if not, in what respect is the analogy not complete?

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

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