List of top Physics Questions asked in COMEDK UGET

The value of $g$ at a height equal to half the radius of the earth from the earth's surface is
If $A$ is the angle of prism, $r$ angle of refraction, then the condition for minimum deviation is
A galaxy moves with respect to us so that sodium light of $589.0 \,nm$ is observed at $589.6 \,nm$. The speed of the galaxy is
A particle executes simple harmonic motion with amplitude A. The distance moved by the particle in one oscillation is
The current in a coil changes from 1 mA to 5 mA in 4 ms. ? If the coefficient of self-inductance of the 'coil is 10 mH,. the magnitude of "self-induced" emf is?
LCD stands for
A block of mass 0.1 kg is held against a wall by applying a horizontal force of 5 N on it. If $\mu,$ between the wall? and the block is 0.5, the magnitude of the frictional force acting on the block is
If $x =at + bt^2$ where $x$ is measured in m and t ins, thenthe dimension of (b/a) is
A ring rolls down an inclined plane. The ratio of rotational kinetic energy to translational kinetic energy is
The layer in earth's atmosphere which reflects radio waves from the earth thus, helping radio communication is
A mass of 0.1 kg is hung at the 20 cm mark from a 1 m rod weighing 0.25 kg pivoted at its centre. The rod will not topple if
In the case of the Bohr atom model, if $E_k$ and $U$ are the kinetic and potential energies of an electron in an orbit then,
A particle is moving eastward with velocity $5 \, m \, s^{-1}$ In 10 s the velocity changes to $5\, m\, s^{-1}$ northwards. The average acceleration in this time is
A glass hemisphere of radius 0.1 cm and refractive index 1.5 is placed over a spot on a table and the spot is viewed from above. The spot appears to be
The ratio of speed of sound in Hydrogen to that in Oxygen at the same temperature is
Two point charges $Q_1 = 2 \mu C$ and $ Q_2 = 1 \mu C$ are placed as shown. The coordinates of the point P are (2 cm, 1 cm). The electric intensity vector at P subtends an angle $\theta$ with the positive X-axis. The value of $\theta$ is given by
According to Faraday's law of electromagnetic induction, an emf is induced in a coil if
"Plum pudding" model of an atom was proposed by
The carrier of electromagnetic interaction is
Assuming $g_{(moon)} = \left( \frac{1}{6}\right) g_{earth}$ and $D_{(moon)} = \left( \frac{1}{4}\right) D_{earth}$ where g and D are. the acceleration due to gravity and diameter respectively, the escape velocity from the moon is
Diffraction effects are more easily detected in the case of sound waves than light waves because
A star $ A $ is 100 times brighter than star $B$. Then $m_B - m_A$ the difference in their apparent magnitudes is
Ratio of radiant energy emitted per unit area per second by two stars is 16 : 81. The ratio of wavelengths at which intensity of radiant energy is maximum is given by?
Water drops fall at regular intervals from a tap 5 m above the ground. The third drop is leaving the tap at an instant when the first drop touches the ground. The height, in m, of the second drop above the ground at that instant is (Take g = 10 m s$^{-2}$)
Two planets of radii $R_1$ and $R_2$ have the same density. The ratio of the acceleration due to gravity on these planets is