Physics questions
20027 published questions with worked solutions.
- A body is released from a point distance r from the centre of earth. If R is the radius of the earth and r>R, then the velocity...
- A planet of mass m moves around the sun of mass M in an elliptical orbit. The maximum and minimum distances of the planet from...
- The period of a planet around sun is 27 times that of earth. The ratio of radius of planet's orbit to the radius of earth's orbit...
- Two small satellites move in circular orbits around the earth, at distances r and r+ r from the centre of the earth. Their time...
- A rocket is launched vertically from the surface of the earth of radius R with an initial speed v. If atmospheric resistance is...
- Suppose the gravitational force varies inversely as the nth power of distance. Then, the time period of a planet in circular...
- An artificial satellite is moving in a circular orbit around the earth. The height of the satellite above the surface of earth is...
- The satellite of mass m revolving in a circular orbit of radius r around the earth has kinetic energy E. Then, its angular...
- A body of mass m taken from the earth's surface to the height equal to twice the radius (R) of the earth. The change in potential...
- A satellite is revolving round the earth with orbital speed v_0. If it stops suddenly, the speed with which it will strike the...
- An artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of escape...
- The mass of earth is 81 times the mass of the moon and the distance between their centres is R. The distance from the centre of...
- Earth has mass M_1 and radius R_1. Moon has mass M_2 and radius R_2. Distance between their centre is r. A body of mass M is...
- The ratio of energy required to raise a satellite of mass m to a height h above the earth's surface of that required to put it...
- What is the minimum energy required to launch a satellite of mass m from the surface of the earth of mass M and radius R at an...
- The kinetic energy of a revolving satellite (mass m) at a height equal to thrice the radius of the earth (R) is [MHTCET 2019]
- A body is projected vertically from the surface of the earth of radius R with velocity equal to half of the escape velocity. The...
- The ratio of binding energy of a satellite at rest on earth's surface to the binding energy of a satellite of same mass revolving...
- The value of gravitational acceleration g at a height h above the earth's surface is g/4, then (R = radius of earth) [MHTCET 2016]
- Two particles of masses m and 9m are separated by a distance r. At a point on the line joining them the gravitational field is...