Earth Satellites
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PHXI08:GRAVITATION

359745 Choose the incorrect statement from the following

1 The linear speed of a planet revolving around the sun remains constant.
2 The speed of satellite in a given circular orbit remains constant.
3 When a body falls towards earth, the displacement of earth towards the body is negligible.
4 For a planet revolving around the sun in an elliptical orbit, the total energy of the planet remains constant.
JEE - 2023
PHXI08:GRAVITATION

359746 A spaceship of mass \(2 \times {10^4}\;kg\) is launched into a circular orbit close to the earth surface. The additional velocity to be imparted to the spaceship in the orbit to overcome the gravitational pull will be (if \(g = 10\;m/{s^2}\) and radius of earth \( = 6400\;km\))

1 \(8(\sqrt 2 - 1)\,km/s\)
2 \(7.4(\sqrt 2 - 1)\,km/s\)
3 \(11.2(\sqrt 2 - 1)\,km/s\)
4 \(7.9(\sqrt 2 - 1)\,km/s\)
JEE - 2023
PHXI08:GRAVITATION

359747 Satellites orbiting the earth have finite life and sometimes debris of satellites fall to the earth. This is because

1 The solar cells and batteries in satellites run out
2 The laws of gravitation predict a trajectory spiralling inwards
3 Of viscous forces causing the speed of satellite and hence height to gradually decrease
4 Of collisions with other satellites
NCERT Exemplar
PHXI08:GRAVITATION

359748 Assertion :
The periodic time of communication satellite is 24 hours.
Reason :
The time of revolution of such satellite depends upon, mass of satellite and its distance from earth surface is also varied.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
NEET DIGITAL LIBRARY
PHXI08:GRAVITATION

359745 Choose the incorrect statement from the following

1 The linear speed of a planet revolving around the sun remains constant.
2 The speed of satellite in a given circular orbit remains constant.
3 When a body falls towards earth, the displacement of earth towards the body is negligible.
4 For a planet revolving around the sun in an elliptical orbit, the total energy of the planet remains constant.
JEE - 2023
PHXI08:GRAVITATION

359746 A spaceship of mass \(2 \times {10^4}\;kg\) is launched into a circular orbit close to the earth surface. The additional velocity to be imparted to the spaceship in the orbit to overcome the gravitational pull will be (if \(g = 10\;m/{s^2}\) and radius of earth \( = 6400\;km\))

1 \(8(\sqrt 2 - 1)\,km/s\)
2 \(7.4(\sqrt 2 - 1)\,km/s\)
3 \(11.2(\sqrt 2 - 1)\,km/s\)
4 \(7.9(\sqrt 2 - 1)\,km/s\)
JEE - 2023
PHXI08:GRAVITATION

359747 Satellites orbiting the earth have finite life and sometimes debris of satellites fall to the earth. This is because

1 The solar cells and batteries in satellites run out
2 The laws of gravitation predict a trajectory spiralling inwards
3 Of viscous forces causing the speed of satellite and hence height to gradually decrease
4 Of collisions with other satellites
NCERT Exemplar
PHXI08:GRAVITATION

359748 Assertion :
The periodic time of communication satellite is 24 hours.
Reason :
The time of revolution of such satellite depends upon, mass of satellite and its distance from earth surface is also varied.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
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PHXI08:GRAVITATION

359745 Choose the incorrect statement from the following

1 The linear speed of a planet revolving around the sun remains constant.
2 The speed of satellite in a given circular orbit remains constant.
3 When a body falls towards earth, the displacement of earth towards the body is negligible.
4 For a planet revolving around the sun in an elliptical orbit, the total energy of the planet remains constant.
JEE - 2023
PHXI08:GRAVITATION

359746 A spaceship of mass \(2 \times {10^4}\;kg\) is launched into a circular orbit close to the earth surface. The additional velocity to be imparted to the spaceship in the orbit to overcome the gravitational pull will be (if \(g = 10\;m/{s^2}\) and radius of earth \( = 6400\;km\))

1 \(8(\sqrt 2 - 1)\,km/s\)
2 \(7.4(\sqrt 2 - 1)\,km/s\)
3 \(11.2(\sqrt 2 - 1)\,km/s\)
4 \(7.9(\sqrt 2 - 1)\,km/s\)
JEE - 2023
PHXI08:GRAVITATION

359747 Satellites orbiting the earth have finite life and sometimes debris of satellites fall to the earth. This is because

1 The solar cells and batteries in satellites run out
2 The laws of gravitation predict a trajectory spiralling inwards
3 Of viscous forces causing the speed of satellite and hence height to gradually decrease
4 Of collisions with other satellites
NCERT Exemplar
PHXI08:GRAVITATION

359748 Assertion :
The periodic time of communication satellite is 24 hours.
Reason :
The time of revolution of such satellite depends upon, mass of satellite and its distance from earth surface is also varied.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXI08:GRAVITATION

359745 Choose the incorrect statement from the following

1 The linear speed of a planet revolving around the sun remains constant.
2 The speed of satellite in a given circular orbit remains constant.
3 When a body falls towards earth, the displacement of earth towards the body is negligible.
4 For a planet revolving around the sun in an elliptical orbit, the total energy of the planet remains constant.
JEE - 2023
PHXI08:GRAVITATION

359746 A spaceship of mass \(2 \times {10^4}\;kg\) is launched into a circular orbit close to the earth surface. The additional velocity to be imparted to the spaceship in the orbit to overcome the gravitational pull will be (if \(g = 10\;m/{s^2}\) and radius of earth \( = 6400\;km\))

1 \(8(\sqrt 2 - 1)\,km/s\)
2 \(7.4(\sqrt 2 - 1)\,km/s\)
3 \(11.2(\sqrt 2 - 1)\,km/s\)
4 \(7.9(\sqrt 2 - 1)\,km/s\)
JEE - 2023
PHXI08:GRAVITATION

359747 Satellites orbiting the earth have finite life and sometimes debris of satellites fall to the earth. This is because

1 The solar cells and batteries in satellites run out
2 The laws of gravitation predict a trajectory spiralling inwards
3 Of viscous forces causing the speed of satellite and hence height to gradually decrease
4 Of collisions with other satellites
NCERT Exemplar
PHXI08:GRAVITATION

359748 Assertion :
The periodic time of communication satellite is 24 hours.
Reason :
The time of revolution of such satellite depends upon, mass of satellite and its distance from earth surface is also varied.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.