List of top Questions asked in MET- 2016

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?
The combination of gates shown in the figure below produces:
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:
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:
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?
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 $x > l$?
Nuclear reactor in which U-235 is used as fuel uses 2 kg of U-235 in 30 days. Then, power output of the reactor will be (given energy released per fission = 185 MeV):
Two coils X and Y are placed in a circuit such that a current changes by 3 A in coil X and magnetic flux changes of 1.2 Wb occurs in Y. The value of mutual inductance of the coils is:
Four identical balls, A, B, C and D are placed on a smooth horizontal plane such that B, C and D are in one line and are in contact and A is kept along the same line but a distance away. Now, A is set in motion with speed v along the line and it strikes the ball B. After this collision, which is elastic:
A projectile has the maximum range 500 m. If the projectile is thrown up an inclined plane of $30^\circ$ with the same (magnitude) velocity, the distance covered by it along the inclined plane will be:
Two capacitors of capacitances $3~μ F$ and $6~μ F$ are charged to a potential of 12 V each. They are now connected to each other, with the positive plate of each joined to the negative plate of the other. The potential difference across each will be:
If 10% of the main current is to be passed through the moving coil galvanometer of resistance $99Ω$, then the required shunt resistance will be:
Two springs are connected to a block of mass M placed on a frictionless surface. If both the springs have a spring constant k, then the frequency of oscillation of the block is:
White light reflected at normal incidence from a soap film has minima at 6500 Å and maxima at 7500 Å in the visible region with no minimum in between. If $μ$ is 5/3 for the film, the thickness of film is:
A mixture of two gases is contained in a vessel. The gas 1 is monoatomic and gas 2 is diatomic and the ratio of their molecular masses $M₁/M₂ = 1/4$. What is the ratio of root mean square speeds of the molecules of two gases?
A current carrying coil is bent sharply so as to convert it into a double loop both carrying current in the same direction. If B be the initial magnetic field at the centre, then what will be the final concentric magnetic field?
A long wire carries a steady current. It is bent into a circle of one turn and the magnetic field at the centre of the coil is B. It is then bent into a circular loop of n turns. The magnetic field at the centre of the coil will be:
How does the energy difference between the consecutive energy level vary as the quantum number n increases?
The ionisation potential of hydrogen atom is 13.6 eV. How much energy need to be supplied to ionise the hydrogen atom in the first excited state?
Two particles of charges $+e$ and $+2e$ are at 16 cm away from each other. Where should another charge q be placed between them, so that the system remains in equilibrium?