List of top Physics Questions asked in COMEDK UGET

A ball is moving in a circular path of radius 5 m. If tangential acceleration at any instant is $10 \, \text{m/s}^2$ and the net acceleration makes an angle of $30^\circ$ with the centripetal acceleration, then, the instantaneous speed is
A satellite is revolving around the earth in a circular orbit with kinetic energy of $1.69 \times 10^{10}$ J. The additional kinetic energy required for just escaping into the outer space is
When an A.C. source is connected to a inductive circuit,
The resistance of a 10 m long wire is 10 $ \Omega $. Its length is increased by 25\% by stretching the wire uniformly. The new resistance is
A wire of length 2 m carries a current of 1 A along the x axis. A magnetic field $ \mathbf{B} = B_0 (i + j + k) $ tesla exists in space. The magnitude of the magnetic force on the wire is
The temperature of a wire is doubled. The Young's modulus of elasticity

Figure below shows a lens of refractive index, $ \mu = 1.4 $. $ C_1 $ and $ C_2 $ are the centres of curvature of the two faces of the lens of radii of curvature 4 cm and 8 cm respectively. The lens behaves as a

A negative charge particle is moving upward in a magnetic field which is towards north. The particle is deflected towards
A current $ I $ flows in an infinitely long wire with cross section in the form of semi-circular ring of radius 1 m. The magnitude of the magnetic induction along its axis is

A parallel plate capacitor having a dielectric constant 5 and dielectric strength $10^6 \, \text{V/m}$ is to be designed with a voltage rating of 2 kV. The field should never exceed 10% of its dielectric strength. To have the capacitance of 60 pF, the minimum area of the plates should be

If an electron in a hydrogen atom jumps from the third orbit to the second orbit, it emits a photon of wavelength $ \lambda $. When it jumps from the second to the first orbit, the corresponding wavelength of the photon will be:

The following are the graphs of potential barrier versus width of the depletion region for a p-n junction diode.

Which of the following is correct?

The output of the given circuit is

The magnetic flux linked with a coil is given by the equation: $ \phi = 8t^2 + t + 10 $ The e.m.f. induced in the coil in the 3rd second will be
For a paramagnetic material, the dependence of the magnetic susceptibility $ \chi $ on the absolute temperature is given as
A hollow prism is filled with water and placed in air. It will deviate the incident rays
The current in a coil changes steadily from 3 A to 5 A in 0.2 s when an emf of 2 $\mu$V is induced in it. The self-inductance of the coil is
Action and reaction can never balance out because
A monochromatic light of wavelength 800 nm is incident normally on a single slit of width 0.020 mm to produce a diffraction pattern on a screen placed 1 m away. Estimate the number of fringes obtained in Young's double slit experiment with slit separation 0.20 mm, which can be accommodated within the range of total angular spread of the central maximum due to single slit.
Internal energy of $n_1$ moles of hydrogen at temperature $T$ is equal to internal energy of $m_2$ moles of helium at temperature $2T$. The ratio $ \frac{n_1}{n_2} $ is

A body initially at rest undergoes rectilinear motion. The force-time (F-t) graph for the motion of the body is given below. Find the linear momentum gained by the body in 2 s.

A voltmeter of resistance $1000 \, \Omega $ and $0.5 \, \text{V/div} $ is to be converted into a voltmeter to make it read $1 \, \text{V/div} $. The value of high resistance to be connected in series with it is
Joule second is the unit of
A particle of mass 2 mg has the same wavelength as a neutron moving with a velocity of $ 3 \times 10^5 \, \text{ms}^{-1} $. The velocity of the particle is (mass of neutron is $ 1.67 \times 10^{-27} \, \text{Kg} $)
If 216 drops of the same size are charged at 200 V each and they combine to form a bigger drop, the potential of the bigger drop will be