Physics Nootan Class 12 Solutions. We covered all the Physics Nootan Class 12 Solutions in this post for free so that you can practice well for the exam.
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Physics Nootan Class 12 Objective with Solutions for Students
Which one of the following statements about a satellite orbiting around the Earth is correct?
(a) The satellite is kept in orbit by remote control from a ground station.
(b) A satellite is kept in orbit by retro-rockets, and solar energy keeps it moving around the earth.
(c) Satellite requires energy from solar panels and solid fuels for orbiting.
(d) Satellite does not require any energy for orbiting.
Option d – Satellite does not require any energy for orbiting
A satellite revolves around the Earth in an elliptical orbit. Its speed
(a) is the same at all points in the orbit.
(b) is greatest when it is closest to the earth.
(c) is greatest when it is farthest from the earth.
(d) None of the above
Option b – is greatest when it is closest to the earth
The period of a satellite in a circular orbit around a planet is independent of
(a) height above the Earth.
(b) acceleration due to gravity.
(c) the mass of the satellite.
(d) None of the above
Option c – the mass of the satellite
If a satellite is shifted toward the Earth, then the time period of the satellite will
(a) increase
(b) decrease
(c) remain unchanged
(d) nothing can be said
Option b – decrease
A satellite revolves around the Earth in a circular orbit. If gravitational pull suddenly disappears, then it
(a) falls down with increasing speed.
(b) continues to move with the same speed and along the same path.
(c) moves with the same speed tangential to the original orbit.
(d) comes to rest after moving a certain distance along the original path.
Option c – moves with the same speed tangential to the original orbit
We covered all the physics nootan class 12 solutions above in this post for free so that you can practice well for the exam.
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