List of top Questions asked in COMEDK UGET

A disc of moment of inertia 4 kg \( \text{m}^2 \) revolving with 16 rad/s is placed on another disc of moment of inertia 8 kg \( \text{m}^2 \) revolving with 4 rad/s. The angular frequency of the composite disc is
An alternating voltage \( V = 200\sin(100t) \) is applied to a series combination of \( R = 30\Omega \) and an inductor of \( 400 \, \text{mH} \). The power factor of the circuit is,
The monosaccharides of maltose is
On treatment of glucose with bromine water the product formed is
Three vertices are chosen randomly from the seven vertices of a regular 7-sided polygon. The probability that they form the vertices of an isosceles triangle is.
In Young's double slit experiment, the two slits are separated by 0.2 mm and they are 1m from the screen. The wavelength of the light used is 500 nm. The distance between 6th maxima and 10th minima on the screen is closest to
Which of the following vitamin is responsible for beri-beri disease?
The Paschen series of hydrogen spectrum lies in which region?
The escape velocity of a projectile on the earth's surface is 11.2 km/s. A body is projected out with thrice this speed. The speed of the body far away from the earth will be?
Evaluate the integral \( \int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} \cos x \, dx \)
pH of \(10^{-3}\) M solution of KOH is
Evaluate the integral \( \int \frac{1}{x \sqrt{ax^2 - x^2}} \, dx \)
An electric current \( I \) enters and leaves a uniform circular wire of radius \( r \) through diametrically opposite points. A charged particle \( q \) moves along the axis of the circular wire and passes through its center with speed \( v \). The magnetic force on the particle when it passes through the center has a magnitude
A circular coil of 20 turns and radius 10 cm is placed in a uniform magnetic field of 0.10 T normal to the plane of the coil. If the current in the coil is 5 A, then the average force on each electron in the coil due to the magnetic field is
The complex which does not show optical isomerism is
How many atoms are present in hcp per unit cell?
Which of the following molecules does not exhibit dipole moment?
(i) CCl$_4$
(ii) CO$_2$
(iii) NH$_3$
(iv) CHCl$_3$
(v) H$_2$O
(vi) CH$_3$–O–CH$_3$
The average kinetic energy of a molecule in air at room temperature of 20\(^\circ\)C
A galvanometer having a resistance of 4 \( \Omega \) is shunted by a wire of resistance 2 \( \Omega \). If the total current is 1.5 A, the current passing through the shunt is
The height at which the acceleration due to gravity becomes \( \frac{g}{16} \) (where \( g \) is the acceleration due to gravity on the surface of the earth) in terms of \( R \), if \( R \) is the radius of the Earth.
\( \sum_{n=1}^{m} n \cdot n! \) is equal to
Increasing order of bond order of oxygen and its ions is
Evaluate $\left[i^{22} + \left(\dfrac{1}{i}\right)^{25}\right]^3$
If A, B, and C are three mutually exclusive and exhaustive events such that \( P(A) = 2P(B) = 3P(C) \). What is \( P(B) \)?
O\(_2^{−}\), F\(^−\), Mg\(^{2+}\), Al\(^{3+}\), O\(_2\), F\(_2\). How many of the species given above are isoelectronic?