List of top Questions asked in COMEDK UGET

A $CE$ amplifier has current gain 50. Load resistance is $4 \, k\Omega$ and input resistance is $500 \, \Omega . 10 \, m V \, AC$ signal is applied. Peak value of output signal is
A calcite crystal is placed over a dot on a paper sheet and the crystal is rotated. On viewing through the calcite one sees
90 dB sound is x times more intense than 40 dB sound, then x is
The square of the resultant of two equal forces acting at a point is equal to three times their product. Angle between them is
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
A stone dropped from the top of a tower reaches ground in 4 s. Height of the tower is $(g = 10 \, m/s^2)$
Dielectric constant of a metal is
In the titration of Mohr's salt against $ {KMnO_4}$ the indicator used is
Lysine is
The value of $\int \frac{10^{x/2}}{\sqrt{10^{-x} - 10^{x}}}dx$ is
If only 2% of the main current is to be passed through a galvanometer of resistance G, the resistance of shunt should be
In the group $\{1, 2, 3, 4, 5, 6\}$ under multiplication mod $7, 2^{-1} \times 4 =$
In the detection of III group basic radicals, $ {NH4OH}$ is added after $ {NH_4Cl}$ to
Electrolysis of brine gives a mixture of
$n $ type and $p$ type semiconductors can be obtained by doping pure silicon respectively with
Potential energy of two charges $10 \, nC$ each separated by a distance of 0.09 m in air is
The lowering in vapour pressure is maximum for
Quality factor of a series $LCR$ circuit decreases from 3 to 2. Resonant frequency is $600 \, Hz$. Change in band width is
In benzene, each carbon atom undergoes
Highest osmotic pressure is shown by a solution of
Specific resistance of a conductor material increases with
The metal hydroxide which is soluble in excess of ammonium hydroxide is
Power factor of a series $LCR $ circuit is
Proton and $\alpha$ particle have the same deBroglie wavelength. Which one is the same for both of them ?
An example of a sulphur containing amino acid is