Physics questions
20027 published questions with worked solutions.
- A synchronous relay satellite reflects TV signals and transmits TV programme from one part of the world to the other because its
- The centripetal force on a satellite orbiting round the earth and the gravitational force of earth acting on the satellite both...
- The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is v. For a satellite orbiting...
- Two satellites A and B go round a planet P in circular orbits having radii 4R and R respectively. If the speed of the satellite A...
- The orbital velocity of a body close to the earth's surface is
- A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small as compared to the mass...
- The time period of a geostationary satellite at a height 36000 km is 24 h. A spy satellite orbits very close to earth's surface...
- If mean radius of earth is R, its angular velocity is and the acceleration due to gravity at the surface of the earth is g, then...
- A satellite constructs a circle around the earth in 90 min. The height of the satellite above the earth's surface is
- What is a period of revolution of the earth's satellite? Ignore the height of satellite above the surface of the earth. Given,...
- A satellite is placed in a circular orbit around the earth at such a height that it always remains stationary with respect to the...
- The binding energy of an object of mass m placed on the surface of the earth is (R = radius of earth, g = acceleration due to...
- By what per cent, the energy of a satellite has to be increased to shift it from an orbit of radius r to 32r ?
- The total energy of an artificial satellite of mass m revolving in a circular orbit around the earth with a speed v is
- A launching vehicle carrying an artificial satellite of mass m is set for launch on the surface of the earth of mass M and radius...
- The radius of the orbit of a satellite is r and its kinetic energy is K. If the radius of the orbit is doubled, then the new...
- Two satellites A and B having ratio of masses 3: 1 are in circular orbits of radii r and 4r. Then ratio of total mechanical...
- Two identical satellites are orbiting at distances R and 7R from the surface of the earth, R being the radius of the earth. The...
- What is the energy required to launch a m kg satellite from earth's surface in a circular orbit at an altitude of 7R? (R = radius...
- The ratio of the radii of the planets P_1 and P_2 is a. The ratio of their acceleration due to gravity is b. The ratio of the...