A body of weight W newton is at the surface of the earth.
A body of weight W newton is at the surface of the earth. Its weight at a height equal to…
A body of weight W newton is at the surface of the earth. Its weight at a height equal to…
4 point charges each +q is placed on the circumference of a circle of diameter 2d in such a way…
A charge Q is uniformly distributed over a large plastic plate. The electric field at point P close to centre…
A solid which is transparent to visible light and whose conductivity increases with temperature is formed by Options (a) Metallic…
A change of 0.04 V takes place between the base and the emitter when an input signal is connected to…
Out of the following options which one can be used to produce a propagating electromagnetic wave? Options (a) A stationary…
A coil has an area of 0.05 m² and it has 800 turns. It is placed perpendicularly in a magnetic…
A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions per second, in a uniform…
During production of cathode ray Options (a) d.c. source is connected across cathode ray tube (b) a.c. source is connected…
Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 eV. The energy needed to remove…