List of top Questions asked in VITEEE

The temperature coefficient of resistance of a wire is $0.00125/K$. At $300\,K$ its resistance is 1 $\Omega$ .The resistance of the wire will be 2 $\Omega$ at

Condition for spontaneity in an isothermal process is

$AgCl$ dissolves in a solution of ${NH_3}$ but not in water because

A nuclear reaction of $^{235}_{92}U$ with a neutron produces $^{90}_{36}Kr$ and two neutrons. Other element produced in this reaction is

The velocity of a particle at which the kinetic energy is equal to its rest energy is

$\frac{1+\tan ^{2} x}{1-\tan ^{2} x} d x$ is equal to

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

If $\sin^{-1} x + \sin^{-1} y = \frac{\pi}{2}$ , then $\cos^{-1} x + \cos^{-1} y$ is equal to

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 :

In ${TeCl4}$ the central atom tellurium involves

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 :

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

Carbylamine reaction is given by aliph

A galvanometer acting as a voltmeter will have

$A B C D$ 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 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

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 sum of the series $ \frac{1}{2}+\frac{3}{4}+\frac{7}{8}+\frac{15}{16}+... $ upto $ n $ term is

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

A proton with energy of 2 MeV enters a uniform magnetic field of2.5 T normally. The magnetic force on the proton is (Take mass of proton to be $1.6 \times 10^{-27} kg )$

A uniform copper wire of length $1 m$ and cross-sectional area $5 \times 10^{-7} m ^{2}$ carries a current of $1, A$. Assuming that there are $8 \times 10^{28}$ free electron $/ m ^{3}$ in copper, how long will an electron take to drift from one end of the wire to the other?

The transmission of high frequencies in a coaxial cable is determined by

The output stage of a television transmitter is most likely to be a

The purple colour of ${KMnO4}$ is due to the transition