List of top Physics Questions asked in VMMC Medical

The frequency of vibrating air column in closed organ pipe is n. If its length be doubled and radius halved, its frequency will be nearly
A transistor is operated in common emitter configuration at constant collector voltage $ {{V}_{C}}=1.5\,V $ such that a change in the base current from 100 $ \mu A $ to 150 $ \mu A $ produces a change in the collector current from 5 mA to 10 mA. The current gain ( $ \beta $ ) is
300 J of work is done in sliding a 2 kg block up an inclined plane of height 10 m. Taking $ g=10\,m/{{s}^{2}}, $ the work done against friction is
Dopplers effect in sound takes place when source and observer arc
The tension in vibrating streched piano wire is 10 N. To double the frequency, the tension in wire must be
One milligram of matter converted into energy, will give:
20 amp current is flowing in a long straight wire. The intensity of magnetic field at a distance of 10 cm from the wire, will be:
A black body at 200 K is found to exit maximum energy at a wavelength 14 $ \mu m $ . When its temperature is raised to 1000 K, then wavelength at which maximum energy emitted is :
Joule second is the unit of:
In a simple microscope, if the final image is located at 25 cm from the eye placed close to the lens, then the magnifying power is:
The half-life of radium is 1620 years and its atomic weight is 226 kg per kilomol. The number of atoms that will decay from its 1 gm sample per second will be :(Avogadros number $ N=6.023\,\times {{10}^{23}} $ atoms/mol)
The capacity of a condenser is $ 4\times {{10}^{-6}} $ farad and its potential is 100 volts. The energy released on discharging it fully will be:
An electron having charge $ 1.6\,\times {{10}^{-19}}\,C $ and mass $ 9\times {{10}^{-31}}\,kg $ is moving with $ 4\times {{10}^{6}}\,kg $ speed in a magnetic field of $ 2\times {{10}^{-1}} $ tesla in a circular orbit. The force acting on an electron and the radius of circular orbit will be:
If $ {{E}_{1}} $ be the electric field strength of a short dipole at a point on its axial line and $ {{E}_{2}} $ that on the equatorial line at the same distance, then:
The ratio of thermal conductivity of two rods of different material is 5 : 4. The two rods of same area of cross-section and same thermal resistance will have the lengths in the ratio :