List of top Questions asked in VITEEE

Carbylamine reaction is given by aliph
A nuclear reaction of $^{235}_{92}U$ with a neutron produces $^{90}_{36}Kr$ and two neutrons. Other element produced in this reaction is
$A B C D$ is a rectangle. At corners $B, C$ and $D$ of the rectangle are placed charges $+10 \times 10^{-10} C , \quad-20 \times 10^{-12} C \quad$ and $10 \times 10^{-12} C$, respectively. Calculate the potential at the fourth corner. (The side $A B=4 cm$ and $B C=3 cm )$
A parallel plate capacitor of capacitance $100\, pF$ is to be constructed by using paper sheets of $1\, mm$ thickness as dielectric. If the dielectric constant of paper is $4$, the number of circular metal foils of diameter $2\, cm$ each required for the purpose is
Ionization power and penetration range of radioactive radiation increases in the order
The velocity of a particle at which the kinetic energy is equal to its rest energy is
A conductor and a semi-conductor are connected in parallel as shown in the figure. At a certain voltage both ammeters registers the same current. If the voltage of the DC source is increased then
A galvanometer acting as a voltmeter will have
The transmission of high frequencies in a coaxial cable is determined by
If the coefficient of mutual induction of the primary and secondary coils of an induction coil is $5\, H$ and a current of $10 A$ is cut-off in $5 \times 10^{-4} s$, the emf inducted (in volt) in the secondary coil is :
Two electrons one moving in opposite direction with speeds $0.8\,c$ and $0.4\,c$ where c is the speed of light in vacuum. Then the relative speed is about
The output stage of a television transmitter is most likely to be a
Radio carbon dating is done by estimating in specimen
The antenna current of an $AM$ transmitter is $8\,A$ when only the carrier is sent, but it increases to $8.93\,A$ when the carrier is modulated by a single sine wave. Find the percentage modulation.
The electric field intensity $\vec{E}$, due to an electric dipole of moment $\vec{p}$, at a point on the equatorial line is
Assuming $f$ to be the frequency of first line in Balmer series, the frequency of the immediate next (i.e. second) line is Assuming $f$ to be the frequency of first line in Balmer series, the frequency of the immediate next (i.e. second) line is
Radar waves are sent towards a moving airplane and the reflected waves are received. When the airplane is moving towards the radar, the wavelength of the wave
Four independent waves are represented by equations : (1) $X_{1}=a_{1} \sin \omega t$ (2) $X_{2}=a_{1} \sin 2 \omega t$ (3) $X_{3}=a_{1} \sin \omega_{1} t$ (4) $X_{4}=a_{1} \sin (\omega t+\delta)$ Interference is possible between waves represented by equations :
Indicate which one of the following statements is not correct?
(a) Intensities of reflections from different crystallographic planes are equal
(b) According to Bragg's law higher order of reflections have high $\theta$ values for a given wavelength of radiation
(c) For a given wavelength of radiation, there is a smallest distance between the crystallographic planes which can be determined
(d) Bragg's law may predict a reflection from a crystallographic plane to be present but it may be absent due to the crystal symmetry
The product of all values of $(\cos \alpha + i \sin \alpha)^{3/5}$ is equal to
If (x +y )sin u = $x^2y^2$, then $x \frac{\partial u}{\partial x} + y \frac{\partial u}{\partial y} = $
If the normal at $(ap^2, 2ap)$ on the parabola $y^2 = 4ax,$ meets the parabola again at $(aq^2, 2aq)$, then
If the rank of the matrix $\begin{bmatrix}-1 &2&5\\ 2&-4&a-4\\ 1&-2&a+1\end{bmatrix}$ is 1, then the value of $a$ is
The sum of the series $ \frac{1}{2}+\frac{3}{4}+\frac{7}{8}+\frac{15}{16}+... $ upto $ n $ term is
A box contains $9$ tickets numbered $1$ to $9$ inclusive. If $3$ tickets are drawn from the box one at a time, the probability that they are alternatively either {odd, even, odd} or {even, odd, even} is