List of top Physics Questions asked in AIIMS

The intensity ratio of the maxima and minima in an interference pattern produced by two coherent sources of light is 9 : 1. The intensities of the used light sources are in ratio
The freezing point of a solution containing 0.2 g of acetic acid in 20.0 g benzene is lowered by 0.45 $^{\circ}$C. The degree of association of acetic acid in benzene is (Assume acetic acid dimerises in benzene and $K_f$ for benzene = $5.12\, K \,kg \,mol^{-1}$) $M_{observed}$ of acetic acid = 113.78
Light wave enters from medium $1$ to medium $2$. Its velocity in $2^{nd}$ medium is double from $1^{st}$. For total internal reflection the angle of incidence must be greater than
If the linear momentum is increased by $50\%$, then kinetic energy will increase by
Consider the system shown in figure. The pulley and the string are light and all the surfaces are frictionless. The tension in the string is (take g = 10 m s)
When an object is placed between two plane parallel mirrors, then all the images found are of equal intensity. In case of plane parallel mirrors, only two images are possible.
Value of radius of gyration of a uniform rigid body depends on axis of rotation. Radius of gyration is root mean square distance of particles of the body from the axis of rotation.
At resonance, $LCR$ series circuit have a minimum current. At resonance, in $LCR$ series circuit, the current and e.m.f are not in phase with each other
A transistor connected at common emitter mode contains load resistance of 5 k$\Omega$ and an input resistance of 1 k$\Omega$. If the input peak voltage is 5 mV and the current gain is 50, find the voltage gain.
A gun of mass 10 kg fires 4 bullets per second. The mass of each bullet is 20 g and the velocity of the bullet when it leaves the gun is 300 ms. The force required to hold the gun when firing is
The angular amplitude of a simple pendulum is $ \theta_{0} $ The maximum-tension in its string will be
In a Fraunhofer diffraction at single slit of width d with incident light of wavelength 5500 $?$, the first minimum is observed, at angle 30$^{\circ}$. The first secondary maximum is observed at an angle $\theta$ =
If $\vec{A}$ and $\vec{B}$ are non-zero vectors which obey the relation $\left|\vec{A}+\vec{B}\right|=\left|\vec{A}-\vec{B}\right|$, then the angle between them is
The electromagnetic waves are transverse in nature. Waves of wavelength 10 mm are radiowave and microwave.
When a charged particle moves in a circular path. It produces electromagnetic wave. Charged particle has acceleration.
Electron microscope has more resolving power than optical microscope. We can control the energy of electron.
A ball is dropped from the top of a building 100 m high. At the same instant another ball is thrown upwards with a velocity of 40 m/s from the bottom of the building. The two balls will meet after
Consider the diagram shown below.
A voltmeter of resistance $ 150 \,\Omega $ . is connected across $A$ and $B$. The potential drop across and $C$ measured by voltmeter is
Three bodies, a ring, a solid cylinder and a solid sphere roll down the same inclined plane without slipping. They start from rest. The radii of the bodies are identical. Which of the bodies reaches the ground with maximum velocity?
The conductivity of an electrolyte is very low as compared to a metal at room temperature. The number density of free ions in electrolyte is much smaller as compared to number density of free electrons in metals. Further, ions drift much more slowly, being heavier.
A hemisphere is uniformly charged positively. The electric field at a point on a diameter away from the centre is directed
A hexagon of side $8 \,cm$ has a charge $4\,\mu\,C$ at each of its vertices. The potential at the centre of the hexagon is
The variation of magnetic susceptibility with the temperature of a ferromagnetic material can be ploted as
Consider the circular loop having current $i$ and with central point $O$. The magnetic field at the central point $O$ is

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : To increase resolving power of a telescope, the aperture \((a)\) of the objective should be large. 

Reason (R) : Resolving power of the telescope is given by \(\frac{2 a}{1.22 \lambda}\).

In the light of the above statements, choose the correct answer from the options given below