A person hying to lose weight by burning fat lif ts a mass of 10 kg upto a height of 1m 1000 times. …

A particle performs simple harmonic motion with amplitude A. Its speed is trebled at the instant that it is at …

The region between two concentric spheres  of radii ‘a’ and ‘b‘,respectively (see figure),has volume charge density P  = A/r,where A is …

A combination of capacitors is set up as shown in the figure. The magnitud e of the electric field, due …

The temperature dependence of resistances of Cu and undoped Si in the temperature range 300-400 K, is best described by …

Two identical wires A and B, each of length ‘l’, carry the same current T. Wire A is bent into …

A uniform string of length 20 m is suspended from a rigid support. A short wave pulse is introduced at …

A student measures the time period of 100 oscillations of a simple pendulu m four times. The data set is …

A roller is made by joining together two cones at.their vertices It is kept on two rails AB and CD …

A satellite is revolving in a circular orbit at a height ‘Ii’ from the earth’s surface (radius of earth R …

An ideal gas und ergoes a q uasi sta tic, reversible process in which its molar heat capacity C remains constant. …

A pendulum clock loses.12 s a day if the temperature is 40″C and gains 4 s a day if the …