List of top Physics Questions asked in MET

A thin dielectric rod of length $l$ lies along X-axis. One end is at the origin and the other at ($l$, 0). A total charge Q is distributed uniformly. What is the potential at point (x, 0) when $x > l$?

A ray of light is travelling through a medium of refractive index $\frac1\sqrt2}$ with respect to air. When it is incident on the surface making an angle $45^\circ$ with the surface, which of the following will take place?

If a wave travelling in positive x-direction with $A=0.2$ m, velocity $=360$ m/s and $λ=60$ m, then correct expression for the wave is:

In a potentiometer experiment for measuring the emf of a cell, the null point is at 240 cm when we have a 500 Ω resistor in series with the cell and galvanometer. If the series resistance is reduced to half, then the null point will be at:

Two coils each of self-inductance L are connected in parallel. If they are separated by a large distance, then what will be the self-inductance of combination?

Two bar magnets having same geometry with magnetic moments m and 2m, are firstly placed such that their similar poles are on the same side. The time period of oscillation is $T₁$. When the polarity of one is reversed, the time period is $T₂$. Then:

Particles which can be added to the nucleus of an atom without changing its chemical properties are:

In an L-C-R series circuit, the values of R, $XL$ and $XC$ are 120 Ω, 180 Ω and 130 Ω. What is the impedance of the circuit?

What will be the kinetic energy of an electron having de-Broglie wavelength 2Å?

A solenoid of 2.5 m length and 2.0 cm diameter possesses 10 turns per cm. A current of 0.5 A is flowing through it. The magnetic induction at axis inside the solenoid is:

In an L-C-R circuit, which one of the following statements is correct?

A particle moves along X-axis from $x=0$ to $x=5$ cm under the influence of force $F=(7-2x+3x²)$ N. The work done is:

A sphere of mass m moving with constant velocity u hits another stationary sphere of the same mass. If e is the coefficient of restitution, the ratio of velocities ($v₁/v₂$) after collision will be:

The molar specific heat of oxygen at constant pressure $Cp=7.03$ cal/mol and $R=8.31$ J/mol. Heat taken by 5 moles from $10^\circC$ to $20^\circC$ at constant volume is approximately:

The half-life of $²15$At is 100 $μ$s. The time taken for the radioactivity of a sample of this nucleus to decay to $\frac116$th of its initial value is

A mass m is placed on a wedge (triangular block) of mass M. The wedge moves on a smooth horizontal surface. What should be the force F applied on the wedge to the right, so that m remains stationary with respect to wedge? (Ignore any friction)

A block of mass 1 kg slides down a curved track that is one quadrant of a circle of radius 1 m. Speed of the block at the bottom is 2 m/s. Work done by the frictional force on the block when it reaches at the bottom is

In the arrangement, the minimum value of tension in the string to prevent it from sliding down is

In a planetary motion, the areal velocity of position vector of a planet depends on angular velocity ($ω$) and distance ($r$) of the planet from the sun. The correct relation for areal velocity $\fracdAdt$ is

Two blocks A and B are placed one over the other on a smooth horizontal surface. The maximum horizontal force that can be applied on the upper block B, so that A and B move without separation is 49N. The coefficient of friction between A and B is

In the system shown in figure $M₁ > M₂$ and pulley and threads are ideal. System is held at rest by thread BC. Just after thread BC is burnt.

A thin walled glass sphere of radius 2.5 cm is filled with water. An object (O) is placed at 7.5 cm from the surface of the sphere. Neglecting the effect of glass wall, at what distance the image (I) of the object, measured from the centre of sphere is formed?

An artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy $E₀$, its potential energy is

Two junction diodes one of germanium (Ge) and other of silicon (Si) are connected as shown in figure to a battery of emf 12 V and a load resistance 10 k$Ω$. The germanium diode conducts at 0.3 V and silicon diode at 0.7 V. When a current flows in the circuit, then the potential of terminal Y will be

Fifty six tuning forks are arranged in a series such that each fork gives 6 beats per second with the preceding one. Assuming the frequency of the last fork to be double of the first fork, the frequency of the last fork should be