Class-11-Physics

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

Poll

lokesh12

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

The kinetic energy needed to project a body of mass m from the earth’s surface (radius R) to infinity is

Kinetic energy is the energy possessed by a body due to its motion. It depends on the body’s mass and velocity. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lokesh12

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

A particle of mass 10g is kept on the surface of a uniform sphere of mass 100 kg and radius 10 cm. Find the work to be done against the gravitational force between them to take the particle far away from the sphere. You may take G = 6.67 x 10⁻¹¹ Nm²kg ⁻²

A particle of mass refers to an object with a very small size but possessing a measurable mass, often used in physics analyses. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lokesh12

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

Energy required to move a body of mass m from an orbit of radius 2 R to 3 R is

A body of mass refers to an object with a measure of the amount of matter it contains, expressed in kilograms (kg). Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lokesh12

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

If g is the acceleration due to gravity on the earth’s surface, the gain in the potential energy of an object of mass m raised from the surface of the earth to a height equal to the radius R of the earth, is

Acceleration due to gravity is the rate at which objects accelerate towards Earth, approximately 9.8 m/s² near the surface. Class 11 Physics Gravitation CBSE EXAM 2024-25

Poll

lokesh12

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

If suddenly the gravitational force of attraction between earth and a satellite revolving around it become zero, then the satellite will

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

chirag345

Asked: December 13, 2024In: Class-11-Physics

Give an illustration to distingush between inertial and gravitational masses.

An object’s inertial mass resists acceleration in a car, while its gravitational mass determines how it falls under Earth’s gravity. Class 11 Physics Gravitation CBSE EXAM 2024-25

Category: 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 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

The kinetic energy needed to project a body of mass m from the earth’s surface (radius R) to infinity is

A particle of mass 10g is kept on the surface of a uniform sphere of mass 100 kg and radius 10 cm. Find the work to be done against the gravitational force between them to take the particle far away from the sphere. You may take G = 6.67 x 10⁻¹¹ Nm²kg ⁻²

Energy required to move a body of mass m from an orbit of radius 2 R to 3 R is

If g is the acceleration due to gravity on the earth’s surface, the gain in the potential energy of an object of mass m raised from the surface of the earth to a height equal to the radius R of the earth, is

If suddenly the gravitational force of attraction between earth and a satellite revolving around it become zero, then the satellite will

Give an illustration to distingush between inertial and gravitational masses.

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