List of top Physics Questions asked in COMEDK UGET

Least stable structure in liquid crystalline state is observed in
As resistance in a series resonant circuit increases (i) sharpness of resonance decreases (ii) bandwidth increases
Raindrops falling down attain limited value of velocity because of
A voltmeter can read up to $V$ volt. When the series resistance used in the voltmeter is doubled, range of voltmeter is
An inductor coil when connected to a $12 \, V$ batt.ery draws a steady current $6 \, A$. This coil when connected in series with a capacitor and an $AC$ source of $10 \, V$, current is in phase with applied voltage. $AC $ meter included in the circuit reads
Charges $4Q$ and $Q$ are kept separated by a certain distance and are placed at $A$ and $B$, respectively. Electric intensity at $B $ is $E$. Electric intensity at $A$ is
Abody of mass m is raised through a distance equal to the radius of the earth, (R), from the earth surface. Increase in potential energy is
A wire of resistance $9 \Omega$ is uniformly stretched such that.its radius becomes $1/3$ of the original radius. Ratio of the new to old resistance is
Light rays from a luminous (bright point) object in a denser medium of refractive index n at a depth h, outline a circle of radius equal to the depth, at the interface. The refractive index of denser medium is
Axes of polariser and analyser are inclined at an angle $60^{\circ}$. Intensity of emerging light from analyser is $I$. Intensity of light on the polariser is
Decrease in wavelength as a result of scattering is observed in
In Young's double slit experiment, intensities at a bright fringe is $I$. When one of the slits is dosed, intensity at the same position is
A black body emits maximum energy at wavelength $\lambda_0$ when temperature is $T_1$. At temperature $T_2$, it emits maximum energy at $\frac{4}{5} \lambda_0$? Ratio of the two temperature $T_1: T_2$ is
Weight of a body
A plano-convex lens $(f = 20 cm)$ is silvered at plane surface. Now focal length will be
Two rods of same area of cross section and lengths, and conductivities $K_1$ and $K_2$ are connected in series. Then, in steady state conductivity of the combination is
Dielectric constant of a metal is
If the Earth shrinks in its size (radius) mass remaining the same, the value of g on its surface will
If only 2% of the main current is to be passed through a galvanometer of resistance G, the resistance of shunt should be
A stone dropped from the top of a tower reaches ground in 4 s. Height of the tower is $(g = 10 \, m/s^2)$
$_6C^{14}$ and $7_N^{15}$ are examples of
The square of the resultant of two equal forces acting at a point is equal to three times their product. Angle between them is
$n $ type and $p$ type semiconductors can be obtained by doping pure silicon respectively with
A calcite crystal is placed over a dot on a paper sheet and the crystal is rotated. On viewing through the calcite one sees
With the addition of impurities surface tension of a liquid