List of top Physics Questions asked in COMEDK UGET

A heating coil takes 6 min to boil certain amount of milk. Another heating coil takes 3 min to boil same amount of milk. Supply voltage is same. When the coils are connected in parallel, time taken to boil same amount of milk is
Mass defect in a fusion reaction is 0.36%. Energy liberated when 1 gm of material undergoes fusion in kWh is
A particle is projected with a velocity so that height attained becomes equal to the radius of the earth. Then the velocity is
Magnetic moment of deuteron is
Curie temperature is the temperature above which
A step up transformer has turns ratio $10 : 1$. A source of emf 2 volts is fed to the primary. Secondary voltage developed is
A number of capacitors labelled as $8 \, \mu F, 250 \, V$ are given. Minimum number of capacitors needed to get an arrangement equivalent to $10 \, \mu F, 1000 \, V$ is
The material used in the manufacture of cooker must have (k - coefficient of thermal conductivity, s - specific heat of material used)
A high resistance voltmeter connected across a cell reads 2 volts. When a resistance of $19 \, \Omega$ is connected in the cell circuit, voltmeter reading drops to $1.9$ volts. The internal resistance of the-cell is
A wire is stretched such that its length -increases by $0.2 \%$. Its resistance
An electric lamp marked $60 \, W-220 \, V$ is used on an average $5$ hours a day in a month of $30$ days. Cost of electric power consumed at the rate of Rs. 2 per unit is
Instrument used to measure e.m.f. of the cell accurately is
When a current flows through a conductor, there will be increase in temperature. This is mainly due to
Two concentric circular loops of radii $0.08 \, m$ and $0.1 \, m$ carry currents such that magnetic field at the centre is zero. If the current in the outer loop is $8 \, A$ clockwise, current in the inner loop is
Two identical metal spheres with charges $2Q$ and $-Q$ are separated by a distance. Force between them is F. They are connected by a conducting wire and then removed. Force between them now is
In Young's double slit experiment, fringe width decreases by 25% when apparatus is immersed in a liquid. Refractive index of the liquid is
When interference is observed, energy is
In an interference experiment, distance between the slits is 2 mm and screen is placed at distance 1 m from the slits. Fourth dark fringe is formed exactly opposite to one of the slits. Wavelength of light used in nm is
Limit of resolution of a telescope is $4.88 \times 10^{-6}$ rad for light of wavelength 560 nm. Diameter of the objective is
Two coherent monochromatic; light beams of intensities $I$ and $4I$ are superposed. Intensities at constructive and? destructive interferenc positions will be
A body moving with uniform acceleration describes 40 m in the first 5 sec and 65 m in next 5 sec. Its initial velocity will be :
When transistor is in action (emitter base junction is $J_1$, base collectorjunction is $J_2$)
In the circuit shown, the magnitude and direction of the flow of current is
A 5.0 amp current is setup in an external by a 6.0 volt storage battery for 6.0 minutes. The chemical energy of the battery is reduced by ....
A body has a weight 90 kg on the earths surface, the mass of the moon is 1/9 that of the earths mass and its radius is 1/2 that of the earths radius. On the moon the weight of the body is: