List of top Physics Questions

Which of the following elements when added as an impurity into the germanium produces a p-type semiconductor?
Which of the following electromagnetic waves is used in medicine to destroy cancer cells?
Which of the following electromagnetic wave has highest wavelength ?
Which of the following does not use the application of eddy current?
Which of the following effects the elasticity of a substance
Which of the following displacement-time graph is impossible in the case of a particle in one dimensional motion ?
Which of the following decreases in motion along a straight line with constant retardation while the body is moving away from the origin
Which of the following cannot be polarised ?
Which of the following are deflected by the electric field?
Which of the following apparatus is used to determine the Young?? modulus of the material of a given wire?
Which colour has the least speed in glass ?
Which circuit will not show current in ammeter?
When unpolarised light is incident on a plane glass plate at Brewster?? angle, then which of the following statements is correct?
When you move from equator to pole, the value of acceleration due to gravity (g):
Where is the intensity of the gravitational field of the earth maximum?
When the temperature of a gas filled in a closed vessel is increased by $ 1\,^{\circ}C$, its pressure increases by $0.4$ percent. The initial temperature of gas was
When two infinitely long parallel wires separated by a distance of 1 m, each carry a current of 3 ampere, the force in newton/ metre length experienced by each will be, (give $\mu_0=4\pi \times 10^{-7}$ S.I.Units) .
When the load on a wire is increased from $3 \,kg \,wt$ to $5 \,kg \,wt$ the elongation increases from $0.61\, mm$ to $ 1.02\, mm$. The work done during the extension of the wire is
When the angle of projection is $75^\circ$ a ball falls 10 m short of the. target When the angle of projection is $45^\circ$ another balls falls 10 m , a head of target If both an projected from the same point with the same speed then maximum height reached in the second case is.
When ordinary light is made incident on a quarter wave plate, the emergent light is
When light travels from air to glass, the property which does not change is
When forces $F_1,F_2,F_3$ are acting on a particle of mass m such that $F_2$ and $ F_3 $ are mutually perpendicular, then the particle remains stationary, If the force $F_1$ is now removed Then acceleration of the particle is.
When an ideal gas is compressed adiabatically, its temperature rises the molecules on the average have more kinetic energy than before. The kinetic energy increases
When an explosive shell travelling in a parabolic path under the effect of gravity explodes in the mid air, the centre of mass of the fragments will move
When an ac voltage of $220\,V$ is applied to the capacitor $C$, then