The radius of Martian orbit around the Sun is about 4 times the radius of the orbit of Mercury. The Martian year is 687 Earth days. Then which of the following is the length of 1 year on Mercury ?
Gravitation
Every question from past board papers on Gravitation, newest paper first. Open any question for its full worked answer.
NEET UG 2025 question paper (official, booklet 45)
Full paper →-
-
A body weighs 48 N on the surface of the earth. The gravitational force experienced by the body due to the earth at a height equal to one-third the radius of the earth from its surface is :
NEET UG 2024 question paper (official, booklet S6)
Full paper →-
The mass of a planet is \(\frac{1}{10}\)th that of the earth and its diameter is half that of the earth. The acceleration due to gravity on that planet is :
-
The minimum energy required to launch a satellite of mass \(m\) from the surface of earth of mass \(M\) and radius \(R\) in a circular orbit at an altitude of \(2R\) from the surface of the earth is:
NEET UG 2023 question paper (official, booklet G6)
Full paper →-
Two bodies of mass \(m\) and \(9m\) are placed at a distance \(R\). The gravitational potential on the line joining the bodies where the gravitational field equals zero, will be (\(G\) = gravitational constant) :
-
A satellite is orbiting just above the surface of the earth with period \(T\). If \(d\) is the density of the earth and \(G\) is the universal constant of gravitation, the quantity \(\frac{3\pi}{Gd}\) represents :
NEET UG 2022 question paper (official, booklet R6)
Full paper →-
A body of mass 60 g experiences a gravitational force of 3.0 N, when placed at a particular point. The magnitude of the gravitational field intensity at that point is :
NEET UG 2021 question paper (official, booklet M4)
Full paper →-
The escape velocity from the Earth's surface is \(v\). The escape velocity from the surface of another planet having a radius, four times that of Earth and same mass density is :
-
A particle of mass 'm' is projected with a velocity \(v = kV_e\) (k < 1) from the surface of the earth. (\(V_e\) = escape velocity)
The maximum height above the surface reached by the particle is :
NEET UG 2020 question paper (official, booklet E1)
Full paper →-
A body weighs 72 N on the surface of the earth. What is the gravitational force on it, at a height equal to half the radius of the earth ?
NEET UG 2019 question paper (official, booklet P1)
Full paper →-
A body weighs 200 N on the surface of the earth. How much will it weigh half way down to the centre of the earth ?
-
The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is :
NEET UG 2018 question paper (official, booklet EE)
Full paper →-
If the mass of the Sun were ten times smaller and the universal gravitational constant were ten times larger in magnitude, which of the following is not correct ?
-
The kinetic energies of a planet in an elliptical orbit about the Sun, at positions A, B and C are \(K_A\), \(K_B\) and \(K_C\), respectively. AC is the major axis and SB is perpendicular to AC at the position of the Sun S as shown in the figure. Then
NEET UG 2017 question paper (official, booklet B)
Full paper →-
Two astronauts are floating in gravitational free space after having lost contact with their spaceship. The two will :
-
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 :
NEET UG 2016 Phase 1 question paper (official, booklet A)
Full paper →-
At what height from the surface of earth the gravitation potential and the value of g are \(-5.4\times10^{7}\ J\,kg^{-2}\) and \(6.0\ ms^{-2}\) respectively ? Take the radius of earth as 6400 km :
-
The ratio of escape velocity at earth (\(v_e\)) to the escape velocity at a planet (\(v_p\)) whose radius and mean density are twice as that of earth is :
NEET UG 2016 Phase 2 question paper (official, booklet ZZ)
Full paper →-
Starting from the centre of the earth having radius \(R\), the variation of \(g\) (acceleration due to gravity) is shown by
-
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 \(g_0\), the value of acceleration due to gravity at the earth's surface, is