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AIEEE
List of top Questions asked in AIEEE
The ionic mobility of alkali metal ions in aqueous solution is maximum for :
AIEEE - 2008
AIEEE
Chemistry
GROUP 1 ELEMENTS
Rate of a reaction can be expressed by Arrhenius equation as :
$K=Ae^{-E/RT}$
In this equation, E represents :
AIEEE - 2008
AIEEE
Chemistry
Rate of a Chemical Reaction
In a region, steady and uniform electric and magnetic fields are present. These two fields are parallel to each other. A charged particle is released from rest in this region. The path of the particle will be a :
AIEEE - 2008
AIEEE
Physics
Moving charges and magnetism
Which of the following chemical reactions depicts the oxidizing behaviour of
$H_{2} SO_{4}$
?
AIEEE - 2008
AIEEE
Chemistry
Group 16 Elements
How many moles of magnesium phosphate,
$Mg_{3} \left(po_{4}\right)_{2}$
will contain 0.25 mole of oxygen atoms ?
AIEEE - 2008
AIEEE
Chemistry
Mole concept and Molar Masses
HBr reacts with
$CH_{2} =CH-OCH_{3}$
under anhydrous conditions at room temperature to give:
AIEEE - 2008
AIEEE
Chemistry
Chemical Reactions
The organic chloro compound, which shows complete sterochemical inversion during a
$ {S_{N^2}}$
reaction, is
AIEEE - 2008
AIEEE
Chemistry
Haloalkanes and Haloarenes
A material B? has twice the specific resistance of ?A?. A circular wire made of B? has twice the diameter of a wire made of ?A?. Then for the two wires to have the same resistance, the ratio
$l_{B} / l_{A} $
of their respective lengths must be :
AIEEE - 2008
AIEEE
Physics
Resistance
A long solenoid has 200 turns per cm and carries a current i. The magnetic field at its centre is 6.28 x
$10^{-2}$
weber/
$m^{2}$
. Another long solenoid has 100 turns per cm and it carries a current i/3. The value of the magnetic field at its centre is:
AIEEE - 2008
AIEEE
Physics
Magnetic Field
A string is stretched between fixed points separated by 75.0 cm. It is observed to have resonant frequencies of 420 Hz and 315 Hz. There are no other resonant frequencies between these two. Then, the lowest resonant frequency for this string is :
AIEEE - 2008
AIEEE
Physics
Waves
In a common-base mode of a transistor, the collector current is 5.488 mA for an emitter current of 5.60 mA. The value of the base current amplification factor
$\left(\beta\right)$
will be :
AIEEE - 2008
AIEEE
Physics
Transistors
Which of the following units denotes the dimensions
$\frac {ML^{2}} {Q^{2}},$
where
$Q$
denotes the electric charge ?
AIEEE - 2008
AIEEE
Physics
Units and measurement
Assuming the sun to be a spherical body of radius R at a temperature of T K, evaluate the total radiant power, incident on earth, at a distance r from the sun : where
$r_{0}$
is the radius of the earth and
$\sigma$
is Stefan?s constant.
AIEEE - 2008
AIEEE
Physics
Heat Transfer
Starting from the origin a body oscillates simple harmonically with a period of 2 s. After what time will its kinetic energy be 75% of the total energy ?
AIEEE - 2008
AIEEE
Physics
Energy in simple harmonic motion
A particle of mass 100 g is thrown vertically upwards with a speed of 5 m/s. The work done by the force of gravity during the time the particle goes up is :
AIEEE - 2008
AIEEE
Physics
work
A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying die force and the ball goes upto 2 m height further, find the magnitude of the force. Consider g = 10 m/
$s^{2}$
:
AIEEE - 2008
AIEEE
Physics
Work-energy theorem
A mass of M kg is suspended by a weightless string. The horizontal force that is required to displace it until the string makes an angle of 45? with the initial vertical direction is :
AIEEE - 2008
AIEEE
Physics
Work-energy theorem
The density (in
$g\, mL^{-1}$
) of a
$3.60\, M$
sulphuric acid solution that is
$29\%\,H_2SO_4$
(Molar mass
$= 98\, g mol^{-1}$
) by mass will be
AIEEE - 2007
AIEEE
Chemistry
Expressing Concentration of Solutions
Two lenses of power
$-15\, D$
and
$+ 5\,D$
are in contact with each other. The focal length of the combination is
AIEEE - 2007
AIEEE
Physics
Ray optics and optical instruments
The velocity of a particle is
$v = v_0 + gt + ft^2$
. If its position is
$x = 0$
at
$t = 0$
, then its displacement after unit time
$(t = 1)$
is
AIEEE - 2007
AIEEE
Physics
Motion in a straight line
If in a
$p-n$
junction diode, a square input signal of
$10\,V$
is applied as shown
Then the output signal across
$R_L$
will be
AIEEE - 2007
AIEEE
Physics
Semiconductor electronics: materials, devices and simple circuits
If
$M_O$
is the mass of an oxygen isotope
$_{8}O^{17}, M_{P}$
and
$M_{N}$
are the masses of a proton and a neutron respectively, the nuclear binding energy of the isotope is
AIEEE - 2007
AIEEE
Physics
Nuclei
A point mass oscillates along the
$x-axis$
according to the law
$x = x_0 \,cos (\omega t - \pi/4)$
. If the acceleration of the particle is written as
$a = A cos(\omega t + \delta)$
then
AIEEE - 2007
AIEEE
Physics
Waves and Oscillations
A battery is used to charge a parallel plate capacitor till the potential difference between the plates becomes equal to the electromotive force of the battery. The ratio of the energy stored in the capacitor and the work done by the battery will be
AIEEE - 2007
AIEEE
Physics
Current electricity
When 20 g of naphthoic acid (
$C_{11}H_8O_2$
) is dissolved in 50 g of benzene (K
$_f = 1.72 K kg mol^{-1}$
), a freezing point depression of 2 K is observed. The van-t Hoff factor (i) is
AIEEE - 2007
AIEEE
Chemistry
Solutions
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