Volume 1

The orbital velocity of an artificial satellite in a circular orbit just above the earth’s surface is ν. For a satellite orbiting at an altitude of half of the earth’s radius, the orbital velocity is the orbital velocity is The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface [...]

The ratio of distance of two satellites from the centre of earth is 1:4. The ratio of their time periods of rotation will be The ratio of distance of two satellites from the centre of earth is 1:4. The ratio of their time periods of rotation will be September 19, 2020 Category: Arihant Physics by [...]

Two satellite A and B, ratio of masses 3:1 are in circular orbits of radii r and 4r. Then ratio mechanical energy of A and B is ratio of masses 3:1 are in circular orbits of radii r and 4r. Then ratio mechanical energy of A and B is Two satellite A and B September [...]

A planet moves around the sun. It is closest to sun at a distance d1 and have velocity v1 . At farthest distance d2, its speed will be A planet moves around the sun. It is closest to sun at a distance d1 and have velocity v1 . At farthest distance d2 its speed will [...]

The ratio of mean distances of three planets from the sun are 0 : 5 : 1: 1: 5, then the square of time periods are in the ratio of: The ratio of mean distances of three planets from the sun are 0 : 5 : 1: 1: 5 then the square of time periods [...]

Satellite is revolving around the earth. If it’s radius of orbit is increased to 4 times the radius of geostationary satellite, what will become its time period ? Satellite is revolving around the earth. If it's radius of orbit is increased to 4 times the radius of geostationary satellite what will become its time period [...]

Gas escapes from the surface of a planet because it acquires an escape velocity. The escape velocity will depend on which of the following factors: Gas escapes from the surface of a planet because it acquires an escape velocity. The escape velocity will depend on which of the following factors: September 19, 2020 Category: Arihant [...]

With what velocity should a particle be projected so that its height becomes equal to radius of earth? With what velocity should a particle be projected so that its height becomes equal to radius of earth? September 19, 2020 Category: Arihant Physics by D.C Pandey , Chapter 10 - Gravitation , Volume 1 ,

The ratio of the radius of the earth to that of the moon is 10. The ratio of acceleration due to gravity on the earth to that on the moon is 6. The ratio of the escape velocity from the earth’s surface to that from the moon is By which curve will the variation of [...]

When escape velocity is given to a particle on surface of earth, its total energy is its total energy is When escape velocity is given to a particle on surface of earth September 19, 2020 Category: Arihant Physics by D.C Pandey , Chapter 10 - Gravitation , Volume 1 ,