The earth is assumed to be a sphere of radius R. A platform is arranged at a height R
The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from…
7 years ago
Gravitation
If the earth shrink such that its mass does not change but radius decreases to one
If the earth shrink such that its mass does not change but radius decreases to one quarter of its original…
7 years ago
The escape velocity of a body from earth’s surface is Ve. The escape velocity
The escape velocity of a body from earth's surface is Ve. The escape velocity of the same body from a…
7 years ago
A satellite in a circular orbit of radius R has a period of 4 hours. Another satellite
A satellite in a circular orbit of radius R has a period of 4 hours. Another satellite with orbital radius…
7 years ago
If R is the radius of earth, the height at which the weight of a body 1/4 of its weight
If R is the radius of earth, the height at which the weight of a body 1/4 of its weight…
7 years ago
A satellite A of mass m is at a distance r from the centre of earth. Another satellite
A satellite A of mass m is at a distance r from the centre of earth. Another satellite B of…
7 years ago
Height of geostationary satellite is
Height of geostationary satellite is Options (a) 16000 km (b) 22000 km (c) 28000 km (d) 36000 km Correct Answer:…
7 years ago
A body oscillates with amplitude of 10 cm in a horizontal platform.
A body oscillates with amplitude of 10 cm in a horizontal platform. The maximum angular frequency which the platform can…
7 years ago
At what height h above earth, the value of g becomes g/2 (where R=radius of earth)?
At what height h above earth, the value of g becomes g/2 (where R=radius of earth)? Options (a) (√2-1)R (b)…
7 years ago
Radius of orbit of satellite of earth is R. Its kinetic energy is proportional to
Radius of orbit of satellite of earth is R. Its kinetic energy is proportional to Options (a) 1/R (b) 1/√R…
7 years ago