Recent questions in 11th Physics

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Two particles of equal masses go round a circle of radius R under the action of their mutual gravitational attraction. The speed `v` of each particle

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A point mass `m` is placed outside a hollow spherical shell of mass `M` and uniform density at a distance `d` from centre of the sphere as shown in figure. Gravitational force on point mass `m` at `P`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Three equal masses of 2 kg each are placed at the vertices of an equilateral triangle and a mass of 4 kg is placed at the centroid of the triangle which is at a distance of `sqrt2 m` from each of the vertices of the triangle. The force (in newton) acting on the mass of 4 kg

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During the free fall of an

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What will happen to the weight of the body at the south-pole, if the earth stops rotating about its polar

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If `G` is universal gravitational constant and `g` is acceleration due to gravity, then the unit of the quantity `G/g`

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The height at which the weight of a body becomes 1/16th of its weight, on the surface of the earth (radius R),

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The radius of earth is R. Height of a point vertically above the earth’s surface at which acceleration due to gravity becomes 1% of its value at the surface

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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What will be the value of g at the bottom of sea 7 km deep? Diameter of the earth is 12800 km and gon the surface of the earth is `9.8

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Starting from the centre of the earth having radius R, the variation of g (acceleration due to gravity) is shown by which of the following option

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Dependence of intensity of gravitational field `(E)` of earth with distance `(r)` from centre of earth is correctly represented

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A thin rod of length `L` is bent to form a semicircle. The mass of rod is `M`. What will be the gravitational potential at the centre of the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A particle is kept on the surface of a uniform sphere of mass 100 kg and radius 10 cm. Find the work to be done per unit mass against the gravitational force between them, to take the particle far away from the sphere (you may take `h=6.67 xx 10^(-11) Nm^2kg^(-2))`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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The gravitational potential energy of a system consisting two particles separated by a distance r

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The mass of the earth is `6.00 xx 10^(24) kg` and that of the moon is `7.40 xx 10^(22) kg`. The constant of gravitation `G=6.67 xx 10^(-11) N-m^2kg^(-2)`. The potential energy of the system is `- 7.79 xx 10^(28)J`.The mean distance between the earth and the moon

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Two point masses `m_1 and m^2` are separated by a distance `r`. The gravitational potential energy of the system is `G_1`. When the separation between the particles is doubled, the gravitational potential energy is `G_2` . Then, the ratio of `G_1/G_2`

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Gravitational potential energy of a system of particles as shown in the figure

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Escape velocity of a body on the surface of earth is independent

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An object is thrown from the surface of the moon. The escape speed for the object

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A body is projected vertically upwards from the surface of a planet of radius `R` with a velocity equal to 1/3rd of the escape velocity for the planet. The maximum height attained by the body

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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