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A spherical shell of mass $M$ , inner radius $R_{1}$ and outer radius $R_{2}$ is shown in the figure. The variation of magnitude of gravitational field intensity as a function of radial distance $r$ from the centre of the sphere is best represented by

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Important Questions on Gravitation

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>EXERCISE 7.2>Q 13

Two spherical shells each of mass $m$ but radii are $R$ and $\frac{R}{2}$ are placed in such a way that the distance between centres is $\frac{3 R}{2}$ as shown in figure. The gravitational force between them

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>EXERCISE 7.3>Q 14

Two spherical bodies having masses

M

and

3 M

, and radii

r

and

4 r

respectively are released in free space from rest such that the initial separation between their centres is

13 r

. If only force is gravitational attraction, the distance covered by the smaller body just before collision is

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>EXERCISE 7.3>Q 15

g

is the acceleration due to gravity on the surface of the earth, the gain in potential energy of an object of mass

m

raised from the earths surface to a height equal to the radius

R

of the earth is

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>EXERCISE 7.3>Q 16

Let

V

and

E

represent gravitational potential and gravitational field strength at a distance

r

from the centre of a hollow sphere. Consider the following statements

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>EXERCISE 7.3>Q 17

Two objects of masses

m

and

2 m

are at rest at infinite separation. They move towards each other under mutual gravitational attraction then at a separation

r

, which of the following is true?

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>EXERCISE 7.3>Q 18

Given that mass of the earth is

M

and its radius is

R .

A body is dropped from a height equal to the radius of the earth above the surface of the earth. When it reaches the ground, its speed will be

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>EXERCISE 7.3>Q 19

Two bodies of masses

M

and

4 M

Are placed at a distance

r

. The gravitational potential at a point on the line joining them where the gravitational field is zero is.

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>EXERCISE 7.4>Q 20

A double star system consists of two starts having masses

m

and

2 m

separated by a distance

r

A spherical shell of mass M, inner radius R1 and outer radius R2 is shown in the figure. The variation of magnitude of gravitational field intensity as a function of radial distance r from the centre of the sphere is best represented by

Important Questions on Gravitation

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A spherical shell of mass $M$ , inner radius $R_{1}$ and outer radius $R_{2}$ is shown in the figure. The variation of magnitude of gravitational field intensity as a function of radial distance $r$ from the centre of the sphere is best represented by