lokesh12

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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

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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

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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

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lokesh12

Asked: December 17, 2024In: Class-11-Physics

Two spherical bodies of mass M and 5 M and radii R and 2R respectively are released in free space with initial separation between their centers equal to 12 R. If they affact each other due to gravitational force only, then the distance covered by the smaller body just before collision is

A collision is an event where two or more bodies come into contact and exert forces on each other, causing momentum and energy changes. Class 11 Physics Gravitation CBSE EXAM 2024-25

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lokesh12

Asked: December 17, 2024In: Class-11-Physics

Suppose that the gravitational force varies inversely as the nth power of distance. Then, the times period of a planet in circular orbit of radius R around the sun will be proportional to

Gravitational force is the attractive force between two masses, dependent on their masses and inversely proportional to the square of their distance. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lokesh12

Asked: December 17, 2024In: Class-11-Physics

The change in the value of g at a height at a depth d below the surface of earth. When both d and h are much smaller than the radius of earth, then which one of the following is correct?

The Earth’s radius is approximately 6,371 kilometers on average, with slight variations between the equatorial (6,378 km) and polar (6,357 km) radii. Class 11 Physics Gravitation CBSE Exam 2024-25

Poll

lokesh12

Asked: December 17, 2024In: Class-11-Physics

The time period of an earth satellite in circular orbit in independent of

An Earth satellite is an object that orbits the Earth, either naturally (like the Moon) or artificially (like communication and weather satellites). Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lokesh12

Asked: December 17, 2024In: Class-11-Physics

A planet in a distant solar system is 10 times more massive than the earth and its radius is 10 times smaller. Given that the escape velocity from the earth is 11 km s⁻¹, the escape velocity from the surface of the planet would be

A distant solar system refers to a planetary system located far from our own, consisting of a star and orbiting celestial bodies. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lokesh12

Asked: December 17, 2024In: Class-11-Physics

The escape velocity of a body depends upon mass as

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

lokesh12

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

Two spherical bodies of mass M and 5 M and radii R and 2R respectively are released in free space with initial separation between their centers equal to 12 R. If they affact each other due to gravitational force only, then the distance covered by the smaller body just before collision is

Suppose that the gravitational force varies inversely as the nth power of distance. Then, the times period of a planet in circular orbit of radius R around the sun will be proportional to

The change in the value of g at a height at a depth d below the surface of earth. When both d and h are much smaller than the radius of earth, then which one of the following is correct?

The time period of an earth satellite in circular orbit in independent of

A planet in a distant solar system is 10 times more massive than the earth and its radius is 10 times smaller. Given that the escape velocity from the earth is 11 km s⁻¹, the escape velocity from the surface of the planet would be

The escape velocity of a body depends upon mass as

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