Arihant Physics by D.C Pandey

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 ,

The escape velocity for a body of mass 1 kg from the earth surface is 11.2 kms ^−1 . The escape velocity for a body of mass 100 kg would be The escape velocity for a body of mass 1 kg from the earth surface is 11.2 kms ^−1 . The escape velocity for a [...]

Escape velocity on earth is 11.2 km/s . What would be the escape velocity on a planet whose mass is 1000 times and radius is 10 times that of earth ? Escape velocity on earth is 11.2 km/s . What would be the escape velocity on a planet whose mass is 1000 times and radius [...]

Which one of the following graphs represents correctly represent the variation of the gravitational field (E) with the distance (r) from the centre of a spherical shell of mass M radius R ? Which one of the following graphs represents correctly represent the variation of the gravitational field (E) with the distance (r) from the [...]

By which curve will the variation of gravitational potential of a hollow sphere of radius R with distance be depicted ? By which curve will the variation of gravitational potential of a hollow sphere of radius R with distance be depicted ? September 19, 2020 Category: Arihant Physics by D.C Pandey , Chapter 10 - [...]