Physics
Dependence of intensity of gravitational field (E) of earth with distance (r) from centre of earth is correctly represented by
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Aug
Dependence of intensity of gravitational field (E) of earth with distance (r) from centre of earth is correctly represented by Dependence of intensity of gravitational field (E) of earth with distance (r) from centre of earth is correctly represented by August 29, 2020 Category: Chapter 12 - Gravitation , NEET Last 32 Years Solved 1988 [...]
A black hole is an object whose gravitational field is so strong that even light cannot escape from it. To what approximate radius would earth (mass = 5.98 × 10^24 kg) have to be compressed to be a black hole?
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Aug
A black hole is an object whose gravitational field is so strong that even light cannot escape from it. To what approximate radius would earth (mass = 5.98 × 10^24 kg) have to be compressed to be a black hole? A spherical planet has a mass Mp and diameter Dp . A particle of mass [...]
The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of Earth. The escape velocity of a body from this platform is fve, where ve is its escape velocity from the surface of the earth. The value of f is
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Aug
The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of Earth. The escape velocity of a body from this platform is fve, where ve is its escape velocity from the surface of the earth. The value of f is The earth is [...]
The ratio of escape velocity at earth(ve) to the escape velocity at a planet(vp) whose radius and mean density are twice as that of earth is:
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Aug
The ratio of escape velocity at earth(ve) to the escape velocity at a planet(vp) whose radius and mean density are twice as that of earth is: The ratio of escape velocity at earth(ve) to the escape velocity at a planet(vp) whose radius and mean density are twice as that of earth is: August 29, 2020 [...]
Imagine a new planet having the same density as that of earth but it is 3 times bigger than the earth in size. If the acceleration due to gravity on the surface of earth is g and that on the surface of the new planet is g’ then
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Aug
Imagine a new planet having the same density as that of earth but it is 3 times bigger than the earth in size. If the acceleration due to gravity on the surface of earth is g and that on the surface of the new planet is g’ then A spherical planet has a mass Mp [...]
A spherical planet has a mass Mp and diameter Dp . A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity equal to:
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Aug
A spherical planet has a mass Mp and diameter Dp . A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity equal to: A spherical planet has a mass Mp and diameter Dp . A particle of mass m falling freely near the surface of [...]
The height at which the weight of a body becomes 1/16th, its weight on the surface of earth (radius R), is
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Aug
The height at which the weight of a body becomes 1/16th, its weight on the surface of earth (radius R), is is its weight on the surface of earth (radius R) The height at which the weight of a body becomes 1/16th August 29, 2020 Category: Chapter 12 - Gravitation , NEET Last 32 Years [...]
A satellite of mass m is orbiting the earth (of radius R) at a height h from its surface. The total energy of the satellite in terms of g0, the value of acceleration due to gravity at the earth’s surface, is
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Aug
A satellite of mass m is orbiting the earth (of radius R) at a height h from its surface. The total energy of the satellite in terms of g0, the value of acceleration due to gravity at the earth’s surface, is A satellite of mass m is orbiting the earth (of radius R) at a [...]
Starting from the centre of the earth having radius R, the variation of g (acceleration due to gravity) is shown by
29
Aug
Starting from the centre of the earth having radius R, the variation of g (acceleration due to gravity) is shown by Starting from the centre of the earth having radius R the variation of g (acceleration due to gravity) is shown by August 29, 2020 Category: Chapter 12 - Gravitation , NEET Last 32 Years [...]
At what height from the surface of earth the gravitation potential and the value of g are −5.4 × 10^7 J kg^−2 and 6.0 ms^−2 respectively? Take the radius of earth as 6400 km.
29
Aug
At what height from the surface of earth the gravitation potential and the value of g are −5.4 × 10^7 J kg^−2 and 6.0 ms^−2 respectively? Take the radius of earth as 6400 km. At what height from the surface of earth the gravitation potential and the value of g are −5.4 × 10^7 J [...]