Embibe Experts Solutions for Chapter: Gravitation, Exercise 3: Level 3

Which of the following graphs represent the time period of the planet moving around the sun? [$R$ is semi-major axis of the path.]

The distance of a geostationary satellite from the centre of the earth (Radius, $R=6400 \mathrm{km}$) is nearest to

If the period of a satellite in a circular orbit of radius $R$ is $T$, then the period of another satellite in a circular orbit of the radius $4R$ is

Assertion: Gravitational potential of the earth at every place on its is negative. (taking potential at infinity to be zero)

Reason: Everybody on earth is bound by the attraction of earth.

If the earth stops rotating suddenly,the value of $g$ at a place other than the poles would,

The distances of Neptune and Saturn from the Sun are nearly ${10}^{13} \mathrm{m}$ and ${10}^{12} \mathrm{m}$, respectively. Assuming that they move in circular orbits, their periodic times will be in the ratio

A satellite of mass $m$ is orbiting around the Earth with constant angular velocity. If the radius of the orbit is $R_0$ and mass of the Earth is $M$, the angular momentum about the centre of the Earth is:

The orbital angular momentum of a satellite revolving at a distance $r$ from the centre is $L$. If the distance is increased to $16r$, then the new angular momentum will be