Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 5

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The gravitational field in a region is given by $\vec{g} = (2 \hat{i} + 3 \hat{j}) {Nkg}^{- 1}$ . The work done in moving a particle of mass $1 kg$ from $(1, 1)$ to $(2, \frac{1}{3})$ along the line $3 y + 2 x = 5$ is

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Important Questions on Gravitation

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 6

If the change in value of

g

at a height

h

above the surface of the earth is same as that at a depth

d

below it, when both

h

and

d

are much smaller than the radius of the earth, then

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 7

If the radius of earth were to shrink by one percent and mass remains same, then acceleration due to gravity on the surface of the earth would

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 8

If

g_{1}

and

g_{2}

denote acceleration due to gravity on the surface of the earth and on a planet whose mass and radius is thrice that of earth, then

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 9

At what height above the earth's surface does the value of

g

becomes

36 %

of the value at the surface of earth?

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 10

A point mass when enters

d

depth below the earth's surface such that the

g

reduces by

1 %

then the value of

d

is [Take

R_{e} = 6400 km

]

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Gamma Question Bank for Engineering Physics>Chapter 7 - Gravitation>Assignment>Q 11

The ratio between masses of two planets is

3 : 5

and the ratio between their radii is

5 : 3

. The ratio between their acceleration due to gravity will be

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

The weight of an object on the surface of the Earth is

40 N

. Its weight at a height equal to the radius of the Earth is

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

The value of

g

at a depth

h

is two third the value that on the earth's surface. The value of

h

in terms of radius of earth

R

is