Physics

A thin semicircular conducting ring (PQR) of radius r is falling with its plane

A thin semicircular conducting ring (PQR) of radius r is falling with its plane vertical in a horizontal magnetic field…

A thermodynamic system undergoes cyclic process ABCDA as shown in figure

A thermodynamic system undergoes cyclic process ABCDA as shown in figure. The work done by the system in the cycle…

A system consists of three masses m₁, m₂ and m₃ connected by a string passing

A system consists of three masses m₁, m₂ and m₃ connected by a string passing over a pulley P. The…

A speeding motorcyclist sees traffic jam ahead him. He slows down to 36 km per hour

A speeding motorcyclist sees traffic jam ahead him. He slows down to 36 km hour⁻¹. He finds that traffic has…

A radio isotope X with a half life 1.4 x 10⁹ years decays to Y which is stable

A radio isotope X with a half life 1.4 x 10⁹ years decays to Y which is stable. A sample…

A projectile is fired from the surface of the earth with a velocity of 5 m s⁻¹ and angle

A projectile is fired from the surface of the earth with a velocity of 5 m s⁻¹ and angle θ…

A potentiometer circuit has been set up for finding the internal resistance of a given

A potentiometer circuit has been set up for finding the internal resistance of a given cell. The main battery, used…

A monoatomic gas at a pressure P, having a volume V expands isothermally

A monoatomic gas at a pressure P, having a volume V expands isothermally to a volume 2V and then adiabatically…

A conducting sphere of radius R is given a charge Q. The electric potential

A conducting sphere of radius R is given a charge Q. The electric potential and the electric field at the…

A certain number of spherical dropes of a liquid of radius r coalesce to form a single

A certain number of spherical dropes of a liquid of radius r coalesce to form a single drop of radius…