Physics questions
20027 published questions with worked solutions.
- A body of mass 500 g moves along x-axis such that it's velocity varies with displacement x according to the relation v = 10 x...
- A plane electromagnetic wave of frequency 20 MHz propagates in free space along x-direction. At a particular space and time, E =...
- The root mean square speed of molecules of nitrogen gas at 27ºC is approximately. (Given mass of a nitrogen molecule = 4.6 10^...
- Eight equal drops of water are falling through air with a steady of 10 cm/s. If the drops coalesce, the new velocity is
- An electron is allowed to move with constant velocity along the axis of current carrying straight solenoid. (A) The electron will...
- A space ship of mass 2 10^4kg is launched into a circular orbit close to the earth surface. The additional velocity to be...
- The thermodynamic process, in which internal energy of the system remains constant is
- If force (F), velocity (V) and time (T) are considered as fundamental physical quantity, then dimensional formula of density will...
- A nucleus disintegrates into two nuclear parts, in such a way that ratio of their sizes is 1 : 2^ 1/3 . Their respective speed...
- A wire of density 8 10^3kg/m^3 is stretched between two clamps 0.5 m apart. The extension developed in the wire is 3.2 10^ -4 m....
- A coil has an inductance of 2H and resistance of 4 . A 10V is applied across the coil. The energy stored in the magnetic field...
- A circular plate is rotating in horizontal plane, about an axis passing through its centre and perpendicular to the plate, with...
- Two identical cells each of emf 1.5 V are connected in series across a 10 resistance. An ideal voltmeter connected across 10...
- A block of mass 5 kg starting from rest pulled up on a smooth incline plane making an angle of 30º with horizontal with an...
- The surface tension of soap solution is 3.5 10^ -2 Nm^ -1 . The amount of work done required to increase the radius of soap...
- The free space inside a current carrying toroid is filled with a material of susceptibility 2 10^ -2 . The percentage increase in...Not in JEE Advanced syllabus
- Three vessels of equal volume contain gases at the same temperature and pressure. The first vessel contains neon (monoatomic),...
- Two radioactive elements A and B initially have same number of atoms. The half life of A is same as the average life of B. If _A...
- The electric field in an electromagnetic wave is given as E =20 (t- x c ) j NC^ -1 where and c are angular frequency and velocity...
- A metallic surface is illuminated with radiation of wavelength , the stopping potential is V_0. If the same surface is...