For a satellite moving in an orbit around the earth, the ratio of kinetic
For a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is Options…
7 years ago
Gravitation
A body of weight W newton is at the surface of the earth.
A body of weight W newton is at the surface of the earth. Its weight at a height equal to…
7 years ago
If radius of earth’s orbit is made 1/4, the duration of a year will become
If radius of earth's orbit is made 1/4, the duration of a year will become Options (a) 4 times (b)…
7 years ago
A particle falls towards earth from infinity. Its velocity on reaching the earth
A particle falls towards earth from infinity. Its velocity on reaching the earth would be Options (a) infinity (b) √(2gR)…
7 years ago
The radius of orbit of a planet is two times that of the earth. The time period
The radius of orbit of a planet is two times that of the earth. The time period of planet is…
7 years ago
The distance of a geo-stationary satellite from the centre of the earth is nearest to
The distance of a geo-stationary satellite from the centre of the earth is nearest to(where R=6400 km) Options (a) 5…
7 years ago
The angular speed of earth, so that the object on equator may appear weightless
The angular speed of earth, so that the object on equator may appear weightless is(g = 10 m/s², radius of…
7 years ago
At what distance from the centre of earth, the value of acceleration due to gravity
At what distance from the centre of earth, the value of acceleration due to gravity will be half that on…
7 years ago
The escape velocity from the earth is Ve. The escape velocity from a planet
The escape velocity from the earth is Ve. The escape velocity from a planet whose radius is 4 times and…
7 years ago
A body of mass m is placed on the earth’s surface. It is taken from the earth’s surface
A body of mass m is placed on the earth's surface. It is taken from the earth's surface to a…
7 years ago