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Two planets revolve around the sun with frequencies $n_{1}$ and $n_{2}$ revolutions per year. If their average orbital radii are $R_{1}$ and $R_{2}$ , respectively, then $R_{1} / R_{2}$ is equal to

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Important Questions on Gravitation

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 10 - Gravitation>Critical Thinking>Q 30

A satellite of mass

m

moving around the earth of mass

m_{E}

in a circular orbit of radius

R

has angular momentum

L

. The rate of the area swept by the line joining the centre of the earth and satellite is

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 10 - Gravitation>Critical Thinking>Q 31

The period of revolution of planet

A

around the Sun is

8

times that of

B

. The distance of

A

from the sun is

n

times greater than the distance of

B

from the sun. The value of

n

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 10 - Gravitation>Critical Thinking>Q 32

If the mean distance of Mars from the Sun is

1.525

times that of the earth from the sun, in how many years will Mars complete one revolution about the Sun?

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 10 - Gravitation>Critical Thinking>Q 33

A body falls freely under gravity. Its speed is

V

when it has lost an amount

U

of the gravitational energy. Then its mass is

MEDIUM

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 10 - Gravitation>Critical Thinking>Q 34

If two identical satellites are at

R

and

7 R

away from earth surface, the wrong statement is (

R =

radius of Earth),

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 10 - Gravitation>Critical Thinking>Q 35

A satellite of mass

m

moves around the earth in a circular orbit with speed

v

. The potential energy of the satellite is,

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 10 - Gravitation>Critical Thinking>Q 37

g

is the acceleration due to gravity and

R

is radius of earth, the minimum kinetic energy required to make a satellite to move to infinity from orbit which is close to earth is,

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MHT-CET TRIUMPH Physics Multiple Choice Questions Part - 1 Based on Std. XI & XII Syllabus of MHT-CET>Chapter 10 - Gravitation>Critical Thinking>Q 38

The ratio of the kinetic energy required to be given to the satellite to escape earth's gravitational field to the kinetic energy required to be given so that the satellite moves in a circular orbit just above earth's atmosphere is,

Two planets revolve around the sun with frequencies n1 and n2 revolutions per year. If their average orbital radii are R1 and R2, respectively, then R1/R2 is equal to

Important Questions on Gravitation

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Two planets revolve around the sun with frequencies $n_{1}$ and $n_{2}$ revolutions per year. If their average orbital radii are $R_{1}$ and $R_{2}$ , respectively, then $R_{1} / R_{2}$ is equal to