Chapter 10 – Gravitation
If Earth is supposed to be a sphere of radius R, if g30 degree is value of acceleration due to gravity at latitude of 30 degree and g at the equator, the value of g−g 30 degree is
19
Sep
If Earth is supposed to be a sphere of radius R, if g30 degree is value of acceleration due to gravity at latitude of 30 degree and g at the equator, the value of g−g 30 degree is If Earth is supposed to be a sphere of radius R if g30 degree is value of [...]
An artificial satellite is moving in a circular orbit around the earth has total mechanical energy E0. Its potential energy is
19
Sep
An artificial satellite is moving in a circular orbit around the earth has total mechanical energy E0. Its potential energy is An artificial satellite is moving in a circular orbit around the earth has total mechanical energy E0. Its potential energy is September 19, 2020 Category: Arihant Physics by D.C Pandey , Chapter 10 - [...]
The period of revolution of planet A around the sun is 8 times that of B. The distance of A from the sun is how many times greater than that of B from the sun?
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Sep
The period of revolution of planet A around the sun is 8 times that of B. The distance of A from the sun is how many times greater than that of B from the sun? The period of revolution of planet A around the sun is 8 times that of B. The distance of A [...]
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
19
Sep
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
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Sep
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
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Sep
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
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Sep
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:
19
Sep
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 ?
19
Sep
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:
19
Sep
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 [...]