Chapter 10 – Gravitation
At what height h above the earth’s surface, the value of g becomes g/2 (where R is the radius of earth)
22
Sep
At what height h above the earth’s surface, the value of g becomes g/2 (where R is the radius of earth) At what height h above the earth's surface the value of g becomes g/2 (where R is the radius of earth) September 22, 2020 Category: Chapter 10 - Gravitation , MTG NEET Physics , [...]
Two solid spherical planets of equal radii R having masses 4M and 9M their centre are separated by a distance 6R. A projectile of mass m is sent from the planet of mass 4 M towards the heavier planet. What is the distance r of the point from the lighter planet where the gravitational force on the projectille is zero ?
22
Sep
Two solid spherical planets of equal radii R having masses 4M and 9M their centre are separated by a distance 6R. A projectile of mass m is sent from the planet of mass 4 M towards the heavier planet. What is the distance r of the point from the lighter planet where the gravitational force [...]
Three identical bodies of mass M are located at the vertices of an equilateral triangle of side L. They revolve under the effect of mutual gravitational force in a circular orbit, circumscribing the triangle while preserving the equilateral triangle. Their orbital velocity is
22
Sep
Three identical bodies of mass M are located at the vertices of an equilateral triangle of side L. They revolve under the effect of mutual gravitational force in a circular orbit, circumscribing the triangle while preserving the equilateral triangle. Their orbital velocity is circumscribing the triangle while preserving the equilateral triangle. Their orbital velocity is [...]
Three equal masses of 1 kg each are placed at the vertices of an equilateral ΔPQR and a mass of 2kg is placed at the centroid O of the triangle which is at a distance of root 2 m from each of the vertices of the triangle. Find the force (in newton) acting on the mass of 2 kg.
22
Sep
Three equal masses of 1 kg each are placed at the vertices of an equilateral ΔPQR and a mass of 2kg is placed at the centroid O of the triangle which is at a distance of root 2 m from each of the vertices of the triangle. Find the force (in newton) acting on the [...]
Let A be the area swept out by the line joining the earth and the sun during February 1991. The area swept out by the line during a typical week in February 1991 is
22
Sep
Let A be the area swept out by the line joining the earth and the sun during February 1991. The area swept out by the line during a typical week in February 1991 is Let A be the area swept out by the line joining the earth and the sun during February 1991. The area [...]
The magnitude of the gravitational field at distance r1 and r2 from the centre of a uniform sphere of radius R and mass M are I1 and I2 respectively. Find the ratio (I1/I2) if r1>R and r2
22
Sep
The magnitude of the gravitational field at distance r1 and r2 from the centre of a uniform sphere of radius R and mass M are I1 and I2 respectively. Find the ratio (I1/I2) if r1>R and r2 The magnitude of the gravitational field at distance r1 and r2 from the centre of a uniform sphere [...]
A planet of radius R=1/10× (radius of Earth) has the same mass density as Earth. Scientists dig a well of depth R/5 on it and lower a wire of the same length and of linear mass density 10^−3kgm^-1 into it. If the wire is not touching anywhere, the force applied at the top of the wire by a person holding it in place is (take the radius of Earth =6×10^6m and the acceleration due to gravity on Earth is 10ms^−2)
22
Sep
A planet of radius R=1/10× (radius of Earth) has the same mass density as Earth. Scientists dig a well of depth R/5 on it and lower a wire of the same length and of linear mass density 10^−3kgm^-1 into it. If the wire is not touching anywhere, the force applied at the top of the [...]
If r denotes the distance between the sun and the earth, then the angular momentum of the earth around the sun is proportional to
22
Sep
If r denotes the distance between the sun and the earth, then the angular momentum of the earth around the sun is proportional to If r denotes the distance between the sun and the earth then the angular momentum of the earth around the sun is proportional to September 22, 2020 Category: Chapter 10 - [...]
Figure shows the variation of energy with the orbit radius r of a satellite in a circular motion. Mark the correct statement.
22
Sep
Figure shows the variation of energy with the orbit radius r of a satellite in a circular motion. Mark the correct statement. Figure shows the variation of energy with the orbit radius r of a satellite in a circular motion. Mark the correct statement. September 22, 2020 Category: Chapter 10 - Gravitation , MTG NEET [...]
A geostationary satellite is orbiting the earth at a height of 6R above the surface of the earth, R being the radius of the earth. The time period of another satellite at a height of 2.5R from the surface of the earth is:
22
Sep
A geostationary satellite is orbiting the earth at a height of 6R above the surface of the earth, R being the radius of the earth. The time period of another satellite at a height of 2.5R from the surface of the earth is: A geostationary satellite is orbiting the earth at a height of 6R [...]