NEET Physics Gravitation Class 11 Questions

Which of the following options are correct?

If a graph is plotted between T² and r³ for a planet, then its slope will be (where Ms is the mass of the sun)

Two planets A and B of radii R and 1.5 R have densities ρ and ρ/2 respectively. The ratio of acceleration due to gravity at the surface of B to A is :

The percentage decrease in the weight of a rocket, when taken to a height of 32 km above the surface of earth will be : (Radius of earth = 6400 km)

The distance of Neptune and Saturn from the sun is nearly 10¹³ and 10¹² meter respectively. Assuming that they move in circular orbits, their periodic times will be in the ratio

The escape velocity of a planet having mass 6 times and radius 2 times as that of earth is

Inside a uniform spherical shell :

A body weighs 250 N on the surface of the Earth. How much will it weigh halfway down to the centre of the Earth?

The acceleration due to gravity at a height 1 km above the Earth is the same as at a depth d below the surface of Earth. Then

Initially a satellite of 100 kg is in a circular orbit of radius 1.5Rₑ. This satellite can be moved to a circular orbit of radius 3Rₑ by supplying 9 × 10⁶ J of energy. The value of Rₑ is _______. (Take Radius of Earth Rₑ = 6 × 10⁶ m and g = 10 m/s²)

The ratio of accelerations due to gravity g₁: g₂ on the surface of two planets is 5: 2 and the ratio of their respective average densities ρ₁: ρ₂ is 2: 1. What is the ratio of respective escape velocities v₁ / v₂ from the surface of the planets?

If V is the gravitational potential due to sphere of uniform density on it's surface, then it's value at the center of sphere will be:

Four particles each of mass m are placed at the vertices of a square of side l. The potential energy of the system is

Two planets of radii in the ratio of 2 : 3 are made from the matter the densities of which are in the ratio of 3 : 2 The ratio of acceleration due to gravity g₁:g₂ at the surface of the two planets will be:-

Statement – I: Three masses each of mass m are placed at the vertices of an equilateral triangle ABC of side l as shown in figure. The force acting on a mass 2 m placed at the centroid O of the triangle is zero. Statement – II: If the mass placed at vertex A is doubled, then the force acting on the mass 2m placed at the centroid O is 6Gm²/l².

Assertion: The gravitational force is dominating force in nature. Reason: The Coulomb force is weaker than the gravitational force.

Find potential energy of chain of mass M placed on hemispherical surface of radius R

What is the gravitational potential energy associated with two particles separated by a distance r?

What is the change in potential energy when a satellite is moved from an orbit of radius 2R to 4R?

What happens to the acceleration due to gravity as a point mass moves below the surface of the Earth?

What does Newton's law of universal gravitation state about the gravitational force between two masses?

What does Newton's law of universal gravitation state about the gravitational force between two masses?

What happens to the gravitational force exerted on a mass placed at point P when the mass is inside a spherical shell of radius greater than its own distance from the center?

What is the approximate time period of the Moon's orbit around the Earth?

What is the minimum speed required for an object to escape from the surface of the Earth?

Which of the following statements is true about Kepler's laws of planetary motion?

What is the gravitational potential energy associated with two particles separated by a distance r, given that V is taken to be zero at r → ∞?

What is the gravitational potential energy at a distance (R_e + h) from the center of the Earth, considering gravitational potential energy at infinity to be zero?

What happens to the acceleration due to gravity as one descends to a depth d within the Earth?

What is the value of the universal gravitational constant G as stated in Newton's law of universal gravitation?

What does Newton's Universal Law of Gravitation state about the relationship between gravitational force and distance?

What happens to the acceleration due to gravity as one moves to a greater height above the Earth's surface?

What is the mass of the Earth as calculated from the gravitational force and acceleration due to gravity at its surface?

What is the approximate time period of the Moon's orbit around the Earth?

What is the minimum speed required for an object to escape from the Earth's gravitational pull?

What is the gravitational potential energy associated with two particles separated by a distance r?

What is one of the three laws extracted by Johannes Kepler from Tycho Brahe's observations of planets?

What is the expression for the gravitational potential energy associated with two particles separated by a distance r?

What does the Universal Law of Gravitation state regarding the force of attraction between two bodies?

What happens to the acceleration due to gravity as one descends below the Earth's surface?

What is the acceleration experienced by a mass m at the surface of the Earth, denoted by the symbol g?

What happens to the gravitational force acting on a mass if the mass at vertex A of an equilateral triangle is doubled?

What is the approximate time period of the Moon's orbit around the Earth?

Who analyzed the observational data of planets recorded by Tycho Brahe to formulate Kepler's laws?

What is the minimum speed required for an object to escape from the surface of the Earth?

Which of the following statements about acceleration due to gravity is correct?

Which of the following statements correctly describes the Universal Law of Gravitation?

Which of the following statements about gravitational force and mass distribution is correct?

Which of the following statements about orbital motion and its characteristics is correct?

Which combination of statements about gravitational potential energy is correct?