Physics

If the gravitational force between two objects were proportional to R1​ (and not as R21​) where R is separation between them, then a particle in circular orbit under such a force would have its orbital speed v proportional to If the gravitational force between two objects were proportional to R1​ (and not as R21​) where [...]

Two spheres of masses m and M are situated in air and the gravitational force between them is F. The space around the masses is now filled with a liquid of specific gravity 3. The gravitational force will now be The largest and the shortest distance of the earth from the sun are r1​ and [...]

The largest and the shortest distance of the earth from the sun are r1​ and r2​. Its distance from the sun when it is at perpendicular to the major-axis of the orbit drawn from the sun is: The largest and the shortest distance of the earth from the sun are r1​ and r2​. Its distance [...]

The distance of two planets from the sun are 10^13 and 10^12 m, respectively. The ratio of time periods of these two planets is respectively. The ratio of time periods of these two planets is The distance of two planets from the sun are 10^13 and 10^12 m August 25, 2020 Category: Chapter 12 - [...]

Satellite A of mass ‘m’ is at a distance of ‘r’ from the surface of the earth. Another satellite B of mass ‘2m’ is at a distance of ‘2r’ from the earth’s center. Their time periods are in the ratio of: For a satellite escape velocity is 11 km/s. If the satellite is launched at [...]

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 [...]

What will be the formula of the mass in terms of g, R and G​ ?( R = radius of the earth) R and G​ ?( R = radius of the earth) What will be the formula of the mass in terms of g August 25, 2020 Category: Chapter 12 - Gravitation , NEET Last [...]

For a satellite escape velocity is 11 km/s. If the satellite is launched at an angle of 60 degree with the vertical, then escape velocity will be: For a satellite escape velocity is 11 km/s. If the satellite is launched at an angle of 60 degree with the vertical then escape velocity will be: August [...]

The escape velocity from earth is 11.2 km/s . If a body is to be projected in a direction making an angle of 45 degree to the vertical , then the escape velocity is the The escape velocity from earth is 11.2 km/s . If a body is to be projected in a direction making [...]

The escape velocity from the surface of earth is Ve. The escape velocity from the surface of a planet whose mass and radius are 3 times those of the earth will be The escape velocity from the surface of earth is Ve. The escape velocity from the surface of a planet whose mass and radius [...]