List of top Questions asked in MET- 2011

If 10 percent of the current passes through a moving coil galvanometer of resistance 99 ohm. Then the shunt resistance will be:
A charged particle enters a magnetic field \( H \) with its initial velocity making an angle of \( 45^\circ \) with \( H \). The path of the particle will be:
The time taken by AC of 50 Hz in reaching from zero to the maximum value is:
The velocity of an electron in the second orbit of sodium atom (atomic number = 11) is \( v \). The velocity of an electron in its fifth orbit will be:
A heavy mass is attached to a thin wire and is whirled in a vertical circle. The wire is most likely to break:
The molar heat capacity of rock salt at low temperature varies with temperature according to Debye's \( T^3 \) law. Thus \( C = k \frac{T^3}{\theta^3} \) where \( k = 1940 \, \text{Jmol}^{-1} \text{K}^{-1} \) and \( \theta = 281 \, \text{K} \). Calculate how much heat is required to raise the temperature of 2 moles of rock salt from 10 K to 50 K:
A p-type semiconductor has acceptor levels 57 meV above the valence band. The maximum wavelength of light required to create a hole is:
A force of 10 N acts on a body of mass 20 kg for 10 s. Change in its momentum is:
In which case does the potential energy decrease?
In an explosion, a body breaks into pieces of unequal masses. In this case:
As a result of radioactive decay, \( ^{238}U \) is converted into \( ^{234}Pa \). The particles emitted during this decay are:
5 mol of hydrogen gas is heated from 30°C to 60°C at constant pressure. The heat given to the gas is (given \( R = 2 \, \text{cal/mol deg} \)):
A fish at a depth of 12 cm in water is viewed by an observer on the bank of a lake. To what height the image of this fish is raised? (Refractive index of lake water \( n = \frac{4}{3} \))
In Millikan’s oil drop experiment, an oil drop carrying a charge \( Q \) is held stationary by a potential difference 2400 V between the plates. To keep a drop of half the radius stationary, the potential difference had to be made 600 V. What is the charge on the second drop?
Band spectrum is characteristic of:
The rest energy of an electron is 0.511 MeV. The electron is accelerated from rest to a velocity of 0.5c. The change in its energy will be:
The acceleration of a particle performing SHM is \( 12 \, \text{cm/s}^2 \) at a distance of 3 cm from the mean position. Its time period is:
A soap bubble in vacuum has a radius of 3 cm and another soap bubble in vacuum has a radius of 4 cm. If the two bubbles coalesce under isothermal condition, then the radius of the new bubble will be:
A 10 cm\(^3\) cube floats in water with a height of 4 cm\(^3\) remaining above the surface. The density of the material from which the cube is made is:
The heat flows through a rod of length 50 cm and area of cross-section 5 cm\(^2\). Its ends are respectively at 25°C and 125°C. The coefficient of thermal conductivity of the material of the rod is 0.092 kcal/m°C. The temperature gradient of the rod is:
Escape velocity from earth's surface is 11 km/s. If the radius of a planet is double that of earth and the density is the same as that of earth, then the escape velocity from this planet will be:
The orbital angular momentum of a satellite revolving at a distance \( r \) from the center is \( L \). If the distance is increased to \( 16r \), then the new angular momentum will be:
An electron moving with velocity \( 2 \times 10^{-7} \, \text{m/s} \), describes a circle in a magnetic field of strength \( 2 \times 10^{-2} \, \text{T} \). If \( \frac{e}{m} \) of the electron is \( 1.76 \times 10^{11} \, \text{C/kg} \), then the diameter of the circle will be:
In an AC circuit the potential difference and current are represented respectively by \( V = 100 \sin (100t) \) volt, \( I = 100 \sin \left( 100t + \frac{\pi}{3} \right) \) milliampere. The power in the circuit is:
A conducting wire is moving towards right in a magnetic field \( B \). The direction of induced current in the wire is shown in the figure. The direction of magnetic field will be: