Volume 1
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 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 [...]
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 - [...]
Suppose a vertical tunnel is along the diameter of the earth, assumed to be a sphere of uniform mass density ρ. If a body of mass m is thrown in this tunnel, its acceleration at a distance y from the centre is given by:
18
Sep
Suppose a vertical tunnel is along the diameter of the earth, assumed to be a sphere of uniform mass density ρ. If a body of mass m is thrown in this tunnel, its acceleration at a distance y from the centre is given by: assumed to be a sphere of uniform mass density ρ. If [...]
A particle would take a time t to move down a straight tube from the surface of earth (supposed to be homogeneous sphere) to its centre. If gravity were to remain constant then the time would be t. The ratio t/t ′ will be
18
Sep
A particle would take a time t to move down a straight tube from the surface of earth (supposed to be homogeneous sphere) to its centre. If gravity were to remain constant then the time would be t. The ratio t/t ′ will be In the figure shown September 18, 2020 Category: Arihant Physics by [...]
A person brings a mass of 1kg from infinity to a point A. Initially the mass was at rest but it moves at a speed of 2m/s as it reaches A. The work done by a person on the mass is -3J. The potential at A is:
18
Sep
A person brings a mass of 1kg from infinity to a point A. Initially the mass was at rest but it moves at a speed of 2m/s as it reaches A. The work done by a person on the mass is -3J. The potential at A is: In the figure shown September 18, 2020 Category: [...]
A container has a small hole at its bottom. Area of cross-section of the hole is A1 and that of the container is A2. Liquid is poured in the container at a constant rate Qm^3s−1. The maximum level of liquid in the container will be
18
Sep
A container has a small hole at its bottom. Area of cross-section of the hole is A1 and that of the container is A2. Liquid is poured in the container at a constant rate Qm^3s−1. The maximum level of liquid in the container will be In the figure shown September 18, 2020 Category: Arihant Physics [...]
There is a hole of an area a at a bottom of cylindrical of area A. water is filled up to a height h and water flow out in t second. If water is filled to a height 4h, it will flow out in time.
18
Sep
There is a hole of an area a at a bottom of cylindrical of area A. water is filled up to a height h and water flow out in t second. If water is filled to a height 4h, it will flow out in time. it will flow out in time. There is a hole [...]
Air is blown through a pipe AB at a rate of 15 L/min. The cross-sectional area of the broad portion of the pipe AB is 2 cm^2 and that of the narrow portion is 0.5 cm^2 . The difference in water level h is : (density of air=1.32 kg/m 3 )
18
Sep
Air is blown through a pipe AB at a rate of 15 L/min. The cross-sectional area of the broad portion of the pipe AB is 2 cm^2 and that of the narrow portion is 0.5 cm^2 . The difference in water level h is : (density of air=1.32 kg/m 3 ) In the figure shown [...]