Two concentric shells of masses $$M1$$ and $$M2$$, are . having radii $$r1$$, $$andr2$$. Which of the following is correct expression for the gravitational field on a mass m?

Correct option is 4F=G2r2, for r1<r<r2

Questions

Two concentric shells of masses M₁ and M₂, are . having radii r₁, andr₂. Which of the following is correct expression for the gravitational field on a mass m?

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F=GM1+M2r2, for r

F=GM2r2, for r1

F=G2r2, for r1

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detailed solution

Correct option is D

We know that the gravitational field in aside a shell is zero but for points outside it, the shell behaves as if whole of its mass is concentrated at its centre. When a point lies in between the shells r1

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Two concentric shells of masses M1 and M2, are . having radii r1, andr2. Which of the following is correct expression for the gravitational field on a mass m?

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Two concentric shells of masses M₁ and M₂, are . having radii r₁, andr₂. Which of the following is correct expression for the gravitational field on a mass m?