List of top Questions asked in COMEDK UGET

The displacement of a wave is given by \( y = 20 \cos(\omega t + 4x) \). The amplitude of the wave is
The function \( y = \log(\omega t) \) can represent
If frequencies are \( (v - 1) \) and \( (v + 2) \), then find the value of beats.
Which of the following waves are used in the treatment of muscle ache?
What is the minimum band-gap of the LED diode?
Find the logic gate, when both the inputs are high the output is low and vice-versa.
For an ideal gas, coefficient of volume expansion is given by
The velocity of the proton is one-fourth the velocity of the electron. What is the ratio of the de-Broglie wavelength of an electron to that of a proton?
The correct arrangement in increasing order of wavelength of X-rays, UV rays, and microwaves is
Two particles of masses \( m_1 = m \), \( m_2 = 2m \) and charges \( q_1 = q \), \( q_2 = 2q \) entered into uniform magnetic field. Find \( \frac{F_1}{F_2} \) (force ratio).
Work done in moving a charge of 25 C is 50 J. Calculate the potential difference between two points.
The displacement \( x \) of a particle varies with time \( t \), \( x = ae^{-pt} + be^{qt} \), where \( a, b, p, q \) are positive constants. The velocity of the particle will
For the same resonant frequency, if \( L \) is changed from \( L \) to \( \frac{L}{3} \), then capacitance should change from \( C \) to
Two converging lenses of focal length 20 cm and 40 cm are placed in contact. The effective power of the combination is
The formula of capacitative reactance is
The angle of projection with the horizontal in terms of maximum height attained and horizontal range is given by
Which of the following quantity represents the dimensions of momentum?
Insulators can be charged by which of the following process?
In an adiabatic process with the ratio of two specific heat, \( \gamma = \frac{3}{2} \), pressure is increased by \( \frac{2}{3} \% \), then decrease in the volume will be
The decreasing order of stability of oxides of halogen is
A $2\,kg$ mass lying on a table is displaced in the horizontal direction through $50\,cm$. The work done by the normal reaction will be
The numbers of $ {H^+}$ ions present in 1 mL of a solution whose pH is 13
A mixture of methylamine and dimethylamine is given to you. The reagents used to separate the components of the mixture are
$\cot^{-1} (21) + \cot^{-1} (13) + \cot^{-1} (-8) =$
All lights are switched off, except for a bright point-light source kept at the bottom of a swimming pool filled with clear water of refractive index $4/3$. As a result, only a circular patch of $6\, m$ diameter of the water surface is visible to spectators standing around the swimming pool. Which of the following gives the nearest value of the depth of the pool?