List of top Physics Questions asked in KEAM

In Bohr atom model, the total energy of the electron in hydrogen atom is -3.4eV. Then its angular momentum about the nucleus of the atom is (h=Planck's constant)
The INCORRECT statement is
The energy equivalent of 5 g of a substance is
The material that is not photo sensitive to visible light is
The momenta of a proton, a neutron and an electron are in the ratio 3:2:1, then their respective de Broglie wavelengths are in the ratio
Two rays of light A and B are falling on a glass slab at the angles of incidence 45° and 60°. if the reflected ray of A is partially polarized and that of B is completely polarized, then the refractive index of glass is
If the Young's double slit experimental set up is immersed in a liquid of refractive index μ, the fringe width of the interference pattern observed is β. When the experiment is performed in air medium with the same experimental set up, the fringe width of the pattern will be
A plane wave front is incident on a thin prism, thin convex lens and a concave mirror separately. The wave front(s) emerging out from the
The INCORRECT statement is
The power of a corrective lens is -4.0 D . The lens is
The electromagnetic waves that cause greenhouse effect are
Radio waves are
When an A.C. voltage of V = 330 sin(100πt) is applied to a capacitor, it produces a current of 1 = 1.5 cos(100πt). The capacitive reactance of the capacitor is
Find the mismatch pair
The ratio of energy stored per unit volume in a solenoid having magnetic induction B to the electrostatic energy stored per unit volume in a capacitor in electric field E is
The INCORRECT statement is
Similar or same magnetic fields can be produced by
The strength of earth's magnetic field at a point is 0.4×10-5 T. If this field is to be annulled by the magnetic induction produced at the centre of a circular conducting loop of radius π cm, the current to be sent through the loop is
In a moving coil galvanometer, when the number of turns of the coil is doubled,
An electron and a proton moving with same velocity v enter into a uniform perpendicular magnetic field. Then
Material that is widely used to make wire bound standard resistors is
The three colours in a carbon resistor are red, black and orange. If the fourth colour is absent, then the value of tolerance of the resistor is
The INCORRECT statement is
Conservation of charge and conservation of energy are respectively the basis of
The electrostatic force between a proton and an electron for certain distance of separation is F1 and that between an electron and positron at the same distance of separation is F2. Then the ratio F1: F2 is