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A ring of mass m1 and radius R is fixed in space at some location. An external agent brings a point mass m2 from infinity to centre of the ring. Work done by the external agent will be
18
Sep
A ring of mass m1 and radius R is fixed in space at some location. An external agent brings a point mass m2 from infinity to centre of the ring. Work done by the external agent will be A ring of mass m1 and radius R is fixed in space at some location. An external [...]
A mass m is at a distance a from one end of a uniform rod of length l and mass M. The gravitational force on the mass due to the rod is.
18
Sep
A mass m is at a distance a from one end of a uniform rod of length l and mass M. The gravitational force on the mass due to the rod is. A mass m is at a distance a from one end of a uniform rod of length l and mass M. The gravitational [...]
A ship of length l = 150 m moving with velocity vs = 36 km/hr on the sea, suddenly discovered straight ahead a sinking boat people having met an accident. A rescue boat has been lowered from the mid of the ship, which went to the sinking boat
18
Sep
A ship of length l = 150 m moving with velocity vs = 36 km/hr on the sea, suddenly discovered straight ahead a sinking boat people having met an accident. A rescue boat has been lowered from the mid of the ship, which went to the sinking boat A ship of length l = 150 [...]
Two boats A and B moved away from a buoy anchored in the middle of a river. A moved along the river and B at right angle to it. Having moved off equal distance from the buoy, the boats returned. Find the ratio of the times of motion of the boats,
18
Sep
Two boats A and B moved away from a buoy anchored in the middle of a river. A moved along the river and B at right angle to it. Having moved off equal distance from the buoy, the boats returned. Find the ratio of the times of motion of the boats, the boats returned. Find [...]
A tank is filled to a height H. The range of water coming out of a hole which is a depth H/4 from the surface of water level is
18
Sep
A tank is filled to a height H. The range of water coming out of a hole which is a depth H/4 from the surface of water level is A tank is filled to a height H. The range of water coming out of a hole which is a depth H/4 from the surface of [...]
The speed of a motor launch with respect to water in a stream in 8 m/s, while water current’s speed is 3 m/s. When the launch began travelling upstream, a float was dropped from it. After travelling a distance of
18
Sep
The speed of a motor launch with respect to water in a stream in 8 m/s, while water current’s speed is 3 m/s. When the launch began travelling upstream, a float was dropped from it. After travelling a distance of a float was dropped from it. After travelling a distance of The speed of a [...]
A passenger and a good train are headed in the same direction on a parallel tracks. The passenger train is 240 m long and has a constant velocity 72 km/hr. Beginning from the time the engine of the passenger train approaches last wagon of the good train
18
Sep
A passenger and a good train are headed in the same direction on a parallel tracks. The passenger train is 240 m long and has a constant velocity 72 km/hr. Beginning from the time the engine of the passenger train approaches last wagon of the good train A moving sidewalk in an airport terminal building [...]
Three plates A, B and C are placed close to each other with +Q charge given to the middle plate. The inner surfaces to A and C can be connected to earth through plate D and keys K1 and K2 . The plates D is a dielectric slab with dielectric constant K1 then the charge that will flow through plate D and keys K1 and K2 . The plate D is a dielectric slab with dielectric constant K, then the charge that will flow though plate D when K2 is closed and K2 is open is
18
Sep
Three plates A, B and C are placed close to each other with +Q charge given to the middle plate. The inner surfaces to A and C can be connected to earth through plate D and keys K1 and K2 . The plates D is a dielectric slab with dielectric constant K1 then the charge [...]
A body is thrown up in a lift with a velocity u relative to the lift, and returns to the lift in time t. Show that the lift’s upward acceleration is 2u – gt / t.
18
Sep
A body is thrown up in a lift with a velocity u relative to the lift, and returns to the lift in time t. Show that the lift’s upward acceleration is 2u – gt / t. A body is thrown up in a lift with a velocity u relative to the lift and returns to [...]
Gravitational field at the centre of a semicircle formed by a thin wire AB of mass M and length l is
18
Sep
Gravitational field at the centre of a semicircle formed by a thin wire AB of mass M and length l is Gravitational field at the centre of a semicircle formed by a thin wire AB of mass M and length l is September 18, 2020 Category: Arihant Physics by D.C Pandey , Chapter 10 - [...]