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Poll

neel43

Asked: December 25, 2024In: Class-11-Physics

The mass of moon is 1% mass of earth. The ratio of gravitational pull of earth on moon and that of moon on earth will be

The ratio of gravitational pull between two objects depends on their masses and inversely on the square of their distance. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

neel43

Asked: December 25, 2024In: Class-11-Physics

The radii of circular orbits of two satellites A and B of the earth are 4R and R, respectively. If the speed of satellite A is 3 V, the speed of satellite B will be

The speed of a satellite depends on its orbital radius, being higher in lower orbits and lower in higher orbits. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lokesh12

Asked: December 25, 2024In: Class-11-Physics

A planet is moving in an elliptical orbit around the sun. If T.V and L stands respectively for its kinetic energy, gravitational potential energy, total energy and magnitude of angular momentum about the centre of force, which of the following is correct?

An elliptical orbit is a closed, oval-shaped trajectory followed by an object around a celestial body, governed by gravitational forces. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lokesh12

Asked: December 25, 2024In: Class-11-Physics

For a planet having mass equal to mass of the earth, the radius is one fourth of radius of the earth. Then escape velocity for this planet will be

Velocity is a vector quantity that describes the speed of an object in a specific direction, indicating its motion over time. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lokesh12

Asked: December 25, 2024In: Class-11-Physics

For a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is

An orbit is the curved path of an object around a celestial body, influenced by gravitational forces and centripetal motion. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lokesh12

Asked: December 25, 2024In: Class-11-Physics

The escape velocity of a body on the surface of the earth is 11.2 km/s. If the earth’s mass increase to twice its present value and radius of the earth becomes half, the escape velocity becomes

The radius of Earth is approximately 6,371 kilometers, measured from the center to the surface, influencing gravity and climate. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lallan20

Asked: December 25, 2024In: Class-11-Physics

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

Projected direction refers to the anticipated path an object will follow based on its current motion and applied forces over time. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lallan20

Asked: December 25, 2024In: Class-11-Physics

For a satellite velocity from earth is 11.2 km/s. If a body is to be launched at an angle of 60ᵒ with the vertical, then escape velocity will be

Satellite velocity is the speed required for a satellite to maintain orbit, balancing gravitational pull and centrifugal force during motion. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lallan20

Asked: December 25, 2024In: Class-11-Physics

The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the earth. The escape velocity of a body from this platform is fv, where v is its escape velocity from the surface of the earth. The value of f is

Escape velocity is the minimum speed needed for an object to break free from a planet’s gravitational pull without further propulsion. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lallan20

Asked: December 25, 2024In: Class-11-Physics

A body of mass m is placed on earth surface which is taken from earth surface to a height of h = 3 R. Then change in gravitational

Earth’s surface is the outermost layer, consisting of land, water, and atmosphere, supporting diverse ecosystems and human activities. Class 11 Physics Gravitation CBSE Exam 2024-25

The mass of moon is 1% mass of earth. The ratio of gravitational pull of earth on moon and that of moon on earth will be

The radii of circular orbits of two satellites A and B of the earth are 4R and R, respectively. If the speed of satellite A is 3 V, the speed of satellite B will be

A planet is moving in an elliptical orbit around the sun. If T.V and L stands respectively for its kinetic energy, gravitational potential energy, total energy and magnitude of angular momentum about the centre of force, which of the following is correct?

For a planet having mass equal to mass of the earth, the radius is one fourth of radius of the earth. Then escape velocity for this planet will be

For a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is

The escape velocity of a body on the surface of the earth is 11.2 km/s. If the earth’s mass increase to twice its present value and radius of the earth becomes half, the escape velocity becomes

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

For a satellite velocity from earth is 11.2 km/s. If a body is to be launched at an angle of 60ᵒ with the vertical, then escape velocity will be

The earth is assumed to be a sphere of radius R. A platform is arranged at a height R from the surface of the earth. The escape velocity of a body from this platform is fv, where v is its escape velocity from the surface of the earth. The value of f is

A body of mass m is placed on earth surface which is taken from earth surface to a height of h = 3 R. Then change in gravitational

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