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VITEEE
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Physics
List of top Physics Questions asked in VITEEE
The potential of a large liquid drop when eight liquid drops are combined is 20V. Then the potential of each single drop was
VITEEE - 2012
VITEEE
Physics
Electrostatics
In a common emitter amplifier the input signal is applied across
VITEEE - 2012
VITEEE
Physics
Semiconductors
In the Wheatstone's network given, \( P = 100 \, \Omega \), \( Q = 200 \, \Omega \), \( R = 150 \, \Omega \), \( S = 300 \, \Omega \), the current passing through the battery (of negligible internal resistance) is
VITEEE - 2012
VITEEE
Physics
Current electricity
Three resistors \( 10 \, \Omega \), \( 20 \, \Omega \), and \( 30 \, \Omega \) are connected to form a triangle. Across \( 30 \, \Omega \) resistor a 3V battery is connected. The current through \( 30 \, \Omega \) resistor is
VITEEE - 2012
VITEEE
Physics
Current electricity
The kinetic energy of an electron get tripled then the de-Broglie wavelength associated with it changes by a factor
VITEEE - 2012
VITEEE
Physics
Optics
If the binding energy per nucleon in \( \text{Li}^7 \) and \( \text{He}^4 \) nuclei are respectively \( 5.60 \, \text{MeV} \) and \( 7.06 \, \text{MeV} \), then the energy of the reactor \[ \text{Li}^7 + p \to \text{He}^4 + 2e \] is
VITEEE - 2012
VITEEE
Physics
Nuclear physics
The graph between the square root of the frequency of a specific line of the characteristic spectrum of X-ray and the atomic number of the target will be
VITEEE - 2012
VITEEE
Physics
Atomic Models
The threshold frequency for a photo-sensitive metal is \( 3.3 \times 10^{14} \, \text{Hz} \). If light of frequency \( 8.2 \times 10^{14} \, \text{Hz} \) is incident on this metal, the cut-off voltage for the photo-electric emission is nearly
VITEEE - 2012
VITEEE
Physics
Photoelectric Effect
The potential of the electric field produced by a point charge at any point \( (x, y, z) \) is given by \( V = x^2 + 5y^2 \), where \( x \), \( y \) are in meters and \( V \) is in volts. The intensity of the electric field at \( (-2, 1, 0) \) is
VITEEE - 2012
VITEEE
Physics
Electrostatics
For the given circuit of a p-n junction diode, which of the following is correct?
VITEEE - 2012
VITEEE
Physics
Semiconductors
A parallel plate capacitor has capacitance \( C \). If it is equally filled the parallel layers of materials of dielectric constant \( K_1 \) and \( K_2 \), its capacity becomes \( C_T \). The ratio of \( C_T \) and \( C \) is
VITEEE - 2012
VITEEE
Physics
AC Circuits
A resistor \( R \), an inductor \( L \), and a capacitor \( C \) are connected in series to an oscillator of frequency \( n \). If the resonant frequency is \( n_r \), then the current lags behind voltage when
VITEEE - 2012
VITEEE
Physics
AC Circuits
A square loop, carrying a steady current \( I \), is placed in a horizontal plane near a long straight conductor carrying a steady current \( I_1 \), at a distance of \( d \) from the conductor as shown in figure. The loop will experience
VITEEE - 2012
VITEEE
Physics
Moving charges and magnetism
Three resistors
$1\,\Omega , 2\,\Omega$
and
$3\,\Omega $
are connected to form a triangle. Across
$3\,\Omega$
resistor a
$3\,V$
battery is connected. The current through
$3\,\Omega$
resistor is
VITEEE - 2012
VITEEE
Physics
Resistance
In a common emitter amplifier the input signal is applied across
VITEEE - 2012
VITEEE
Physics
Transistors
Charge passing through a conductor of cross-section area
$A=0.3 \,m ^{2}$
is given by
$q=3 t^{2}+5 t+2$
in coulomb, where
$t$
is in second. What is the value of drift velocity at
$t=2 s ?$
(Given,
$\left.n=2 \times 10^{25} / \,m ^{3}\right)$
VITEEE - 2012
VITEEE
Physics
Current electricity
$A$
and
$B$
are two metals with threshold frequencies
$1.8 \times 10^{14}\, Hz$
and
$2.2 \times 10^{4}\, Hz$
Two identical photons of energy
$0.825 \,eV$
each are incident on them. Then photoelectrons are emitted by (Take
$\left.h=6.6 \times 10^{-34} \,J - s \right)$
VITEEE - 2012
VITEEE
Physics
Photoelectric Effect
Two capacitors of capacities
$1 \, \mu F$
and
$C \, \mu F$
are connected in series and the combination is charged to a potential difference of
$120 \,V$
. If the charge on the combination is
$80 \, \mu C$
, the energy stored in the capacitor of capacity
$C$
in
$\mu J$
is
VITEEE - 2012
VITEEE
Physics
Combination of capacitors
In the Wheatstone's network given,
\(P = 10\,\Omega , Q = 20\,\Omega , R = 15 \,\Omega , S = 30 \,\Omega\)
, the current passing through the battery (of negligible internal resistance) is
VITEEE - 2012
VITEEE
Physics
Kirchhoff's Laws
The potential of a large liquid drop when eight liquid drops are combined is 20 V. Then the potential of each single drop was
VITEEE - 2012
VITEEE
Physics
Surface Tension
In hydrogen a atom, an electron is revolving in the orbit of radius $0.53\,�$ with $6.6 \times 10^{15}$ radiations/s. Magnetic field produced at the centre of the orbit is
VITEEE - 2012
VITEEE
Physics
Magnetic Field Due To A Current Element, Biot-Savart Law
In photoelectric emission process from a metal of work function $1.8 \,eV,$ the kinetic energy of most energetic electrons is $0.5 \,eV$. The corresponding stopping potential is
VITEEE - 2012
VITEEE
Physics
Photoelectric Effect
In the figure shown, the magnetic field induction as the point $O$ will be
VITEEE - 2012
VITEEE
Physics
Faradays laws of induction
A direct
$X$
-ray photograph of the intenstines is not generally taken by radiologists because
VITEEE - 2012
VITEEE
Physics
Dual nature of matter
A parallel plate capacitor has capacitance
$C$
. If it is equally filled the parallel layers of materials of dielectric constant
$K_1$
and
$K_2$
its capacity becomes
$C_1$
. The ratio of
$C_1 $
and
$C$
is
VITEEE - 2012
VITEEE
Physics
Capacitors and Capacitance
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