Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
The escape velocity corresponding to a planet of mass M and radius R is 50 km/s . If the planet’s mass and radius were 4 M and R, respectively, then the corresponding escape velocity would be.
03
Oct
The escape velocity corresponding to a planet of mass M and radius R is 50 km/s . If the planet’s mass and radius were 4 M and R, respectively, then the corresponding escape velocity would be. respectively The escape velocity corresponding to a planet of mass M and radius R is 50 km/s . If [...]
A body starts from a point distant r0 from the centre of the earth. It reaches the surface of the earth whose radius is R. The velocity accquired by the body is
03
Oct
A body starts from a point distant r0 from the centre of the earth. It reaches the surface of the earth whose radius is R. The velocity accquired by the body is A body starts from a point distant r0 from the centre of the earth. It reaches the surface of the earth whose radius [...]
Consider two solid uniform spherical objects of the same density ρ. One has radius R and the other has radius 2R. They are in outer space where the gravitational fields from other objects are negligible. If they are arranged with their surface touching, what is the contact force between the objects due to their traditional attraction?
03
Oct
Consider two solid uniform spherical objects of the same density ρ. One has radius R and the other has radius 2R. They are in outer space where the gravitational fields from other objects are negligible. If they are arranged with their surface touching, what is the contact force between the objects due to their traditional [...]
A solid sphere of uniform density and radius R applies a gravitational force of attraction equal to F 1 on a particle placed at a distance 2R from the centre of the sphere. A spherical cavity of radius R/2 is now made in the sphere as shown in the figure. The sphere with the cavity now applies a gravitational force F 2 on the same particle. The ratio F 1 /F 2 is
03
Oct
A solid sphere of uniform density and radius R applies a gravitational force of attraction equal to F 1 on a particle placed at a distance 2R from the centre of the sphere. A spherical cavity of radius R/2 is now made in the sphere as shown in the figure. The sphere with the [...]
A body is released from a point of distance R’ from the centre of the earth. Its velocity at the time of striking the earth will be (R ′ >R e ).
03
Oct
A body is released from a point of distance R’ from the centre of the earth. Its velocity at the time of striking the earth will be (R ′ >R e ). A body is released from a point of distance R' from the centre of the earth. Its velocity at the time of striking [...]
A solid sphere of radius R/2 is cut out of a solid sphere of radius R such that the spherical cavity so formed touches the surface on one side and the centre of the sphere on other side, as shown. The initial mass of the solid sphere was M. If a particle of mass m is placed at a distance 2.5R from the centre of the cavity, then what is the gravitational attraction on the mass m?
03
Oct
A solid sphere of radius R/2 is cut out of a solid sphere of radius R such that the spherical cavity so formed touches the surface on one side and the centre of the sphere on other side, as shown. The initial mass of the solid sphere was M. If a particle of mass m [...]
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A solid sphere of radius R/2 is cut out of a solid sphere of radius R such that the spherical cavity so formed touches the surface on one side and the centre of the sphere on other side ,
as shown. The initial mass of the solid sphere was M. If a particle of mass m is placed at a distance 2.5R from the centre of the cavity ,
then what is the gravitational attraction on the mass m? ,
A body is released from a point of distance R’ from the centre of the earth. Its velocity at the time of striking the earth will be (R ′ >R e ).
03
Oct
A body is released from a point of distance R’ from the centre of the earth. Its velocity at the time of striking the earth will be (R ′ >R e ). A body is released from a point of distance R' from the centre of the earth. Its velocity at the time of [...]
A space vehicle approaching a planet has a speed v, when it is very far from the planet. At that moment tangent of its trajectory would miss the centre of the planet by distance R. If the planet has mass M and radius r, what is the smallest value of R in order that the resulting orbit of the space vehicle will just miss the surface of the planet?
03
Oct
A space vehicle approaching a planet has a speed v, when it is very far from the planet. At that moment tangent of its trajectory would miss the centre of the planet by distance R. If the planet has mass M and radius r, what is the smallest value of R in order that the [...]
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A space vehicle approaching a planet has a speed v ,
what is the smallest value of R in order that the resulting orbit of the space vehicle will just miss the surface of the planet? ,
when it is very far from the planet. At that moment tangent of its trajectory would miss the centre of the planet by distance R. If the planet has mass M and radius r ,
The radius of a planet is R. A satellite revolves around it in a circle of radius r with angular velocity ω 0 . The acceleration due to the gravity on planet’s surface is
03
Oct
The radius of a planet is R. A satellite revolves around it in a circle of radius r with angular velocity ω 0 . The acceleration due to the gravity on planet’s surface is The radius of a planet is R. A satellite revolves around it in a circle of radius r with angular velocity [...]
Two concentric shells of masses M 1 and M 2 are having radii r 1 and r 2 . Which if the following is the correct expression for the gravitational field on a mass m?
03
Oct
Two concentric shells of masses M 1 and M 2 are having radii r 1 and r 2 . Which if the following is the correct expression for the gravitational field on a mass m? Two concentric shells of masses M 1 and M 2 are having radii r 1 and r 2 . Which [...]