List of top Physics Questions asked in AIIMS

The X-ray tube is operated at $50 \,kV.$ The minimum wavelength produced is
The radius of gyration of a body about an axis at a distance of $6\, cm$ from its centre of mass is $10\, cm$. Then, its radius of gyration about a parallel axis through its centre of mass will be
What is the moment of inertia for a solid sphere w.r.t. a tangent touching to its surface?
What is the dimensions of magnetic field B in terms of C (= coulomb), M, L, T?
Water is flowing with velocity $4 \,m\,s^{-1}$ in a cylinder of diameter $8\,cm$, it is connected to a pipe with it end tip of diameter $2\,cm$, calculate the velocity of water at this free end.
The magnetic field at $P$ on the axis of a solenoid having $100$ turn/ $m$ and carrying a current of $5\, A$ is
The earth circles around the sun once a year. The work which would have to be done on the earth to bring it to rest relative to the sun is, (Ignore the rotation of earth about its own axis) given that the mass of the earth $=6 \times 10^{24}\, kg$ and distance between sun and earth is $1.5 \times 10^{8}\, km$)
Pressure head in Bernoulli's equation is
If man were standing unsymmetrically between parallel cliffs, claps his hands and starts hearing a series of echoes at intervals of $1\, s$. If speed of sound in air is $340 \,m\,s^{-1}$, the distance between two cliffs would be
If $C$ and $L$ denote the capacitance and inductance respectively, the units of $LC$ are
Half life of a radioactive material is $5$ years, then the percentage of it remained after $25$ years will be
Direction of electric field in P-N junction diode is
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
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 $60\, kg$ 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
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?