List of top Physics Questions asked in KEAM

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
The effective capacitance between A and B in the given figure is
The effective capacitance between A and B in the given figure is
The charge present in a doubly ionized helium atom is
Around a stationary charge of +5µC, another charge -5µC is taken once round a circle of radius 4 cm. The amount of work done in Joule is
The force experienced by a proton moving in an electric field of intensity 3E is (e is the charge of the electron)
The ratio of the magnitudes of maximum acceleration to the corresponding velocity of a body undergoing simple harmonic motion, x = a sin 2πft is
The INCORRECT statement is
The time period of a simple pendulum of length L is 3 s. If the length of the pendulum is increased 4 times, the increase in time period of the simple pendulum is
In a gas at STP, if n is the number density of the molecules and r is the radius of the molecule, then the mean free path of the molecule is inversely proportional to
No process is possible whose sole result is the transfer of heat from a colder object to a hotter object. This is Clausius statement for