List of top Physics Questions asked in AIIMS

The resistance of an ideal voltmeter should be infinite. The lower resistance of voltmeters gives a reading lower than the actual potential difference across the terminals.
$C_{p}$ can be less than $C_{V}$. $C_{p} C_{V}=R$ is valid only for ideal gases.
Magnification of a convex mirror is always positive, but that of a concave mirror may be both positive or negative. It depends on the sign convention chosen.
$KE$ is conserved at every instant of elastic collision. No deformation of matter occurs in elastic collision.
In the transmission of long distance radio signals, short wave band is used. In shorter wavelength, attenuation is very less.
A far sighted person has his near point 50 cm, find the power of lens he should use to see at 25 cm, clearly.
A body of mass $0.5\, kg$ is projected under gravity with a speed of $98\, m / s$ at an angle of $60^{\circ}$ with the horizontal. The change in momentum (in magnitude) of the body is
A $60\, kg$ weight is dragged on a horizontal surface by a rope through a distance of $2m$. If coefficient of friction is $ \mu =0.5, $ the angle of rope with surface is $60^{\circ}$ and $g=9.8\,m/{s}^{2}, $ then work done is
An ideal coil of $10\, H$ is joined in series with a resistance of $5 \,\Omega$ and battery of $5\, V,\, 2 s$ after joining the current flowing (in ampere) in the circuit will be
A rocket is fired upward from the earth surface such that it creates an acceleration of $19.6\, m / s ^{2}$. If after $5\, s$, its engine is switched off, the maximum height of the rocket from earth's surface would be
As shown in the figure a magnet is moved with a fast speed towards a coil at rest. Due to this induced emf, induced current and induced charge in the coil is $E,\, I$ and $Q$ respectively. If the speed of the magnet is doubled, the incorrect statement is
Two tangent galvanometer having coils of the same radius are connected in series. A current flowing in them produces deflection of $60^{\circ}$ and $45^{\circ}$ respectively. The ratio of the number of turns in the coils is
A 0.2 kg object at rest is subjected to a force $\left(0.3\hat{i}-0.4\hat{ j}\right)$ N. What is the velocity after 6 s?
A cord is used to lower vertically a block of mass $M$ by a distance $d$ with constant downward acceleration $\frac{g}{4}$. Work done by the cord on the block is
A transformer cannot work on $DC$ supply. $DC$ changes neither in magnitude nor in direction.
A pure semiconductor has negative temperature coefficient of resistance. On raising the temperature, more charge carriers are released, conductance increases and resistance decreases.
The magnetic poles of earth do not coincide with the geographic poles. The discrepancy between the orientation of a compass and true north-south direction is known as magnetic declination.
There is no dispersion of light refracted through a rectangular glass slab. Dispersion of light is the phenomenon of splitting of a beam of white light into its constituent colours.
A transmitter transmits at a wavelength of $300\, m$. A condenser of capacitance $2.4\, \mu F$ is being used. The value of the inductance for the resonant circuit is approximately
Which of the following pairs does not have same dimensions ?
What is moment of inertia of a cylinder of radius $r$, along its height ?
Two spherical soap bubbles of radii $a$ and $b$ in vacuum coaleasce under isothermal conditions. The resulting bubbles has a radius given by
The mass and diameter of a planet are twice those of earth. The period of oscillation of pendulum on this planet will be (if it is a seconds pendulum on earth)
The latent heat of vaporisation of a substance is always
The core of any transformer is laminated so as to