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JIPMER
List of top Questions asked in JIPMER
A stone of mass 0.3 kg attached to a 1.5 m long string is whirled around in a horizontal circle at a speed of 6 ms. The tension in the string is
JIPMER - 2011
JIPMER
Physics
laws of motion
A sound absorber attenuates the sound level by 20 dB. The intensity decreases by a factor of
JIPMER - 2011
JIPMER
Physics
Electromagnetic waves
A projectile is thrown in the upward direction making an angle of 60
$^{\circ}$
with the horizontal direction with a velocity of 147
$ms^{ - 1}$
Then the time after which its inclination with the horizontal is 45
$^{\circ}$
, is
JIPMER - 2011
JIPMER
Physics
Motion in a plane
A ray is incident on a plane surface. If
$\hat{i} + \hat{j} - \hat{k}$
represents a vector along the direction of incident ray.
$\hat{i} + \hat{j} $
is a vector along normal on incident point in the plane of incident and reflected ray, then vector along the direction of reflected ray is
JIPMER - 2011
JIPMER
Physics
Ray optics and optical instruments
A circuit is made up of a resistance
$1\, \Omega$
and inductance
$0.01\, H$
. An alternating emf of
$200\, V$
at
$50\,Hz$
is connected, then the phase difference between the current and the emf in the circuit is
JIPMER - 2011
JIPMER
Physics
Alternating current
A motor cycle is going on an overbridge of radius
$R$
. The driver maintains a constant speed. As the motor cycle is ascending on the overbridge, the normal force on it
JIPMER - 2011
JIPMER
Physics
laws of motion
A galvanometer having a resistance of 8
$\Omega$
is shunted by a wire of resistance 2
$\Omega$
. If the total current is 1 A, the part of it passing through the shunt will be
JIPMER - 2011
JIPMER
Physics
Moving charges and magnetism
A coil of inductance 300 mH and resistance 2
$\Omega$
is connected to a source of voltage 2 V. The current reaches half of its steady state value in
JIPMER - 2011
JIPMER
Physics
Alternating current
Hard X-rays for the study of fractures in bones should have a minimum wavelength of
$10^{-11}$
m. The accelerating voltage for electrons in X-ray machine should be
JIPMER - 2011
JIPMER
Physics
Atoms
Interference was observed in a chamber when air was present. Now, the chamber is evacuated and if the same light is used, a careful observation will show
JIPMER - 2011
JIPMER
Physics
Wave optics
A leaf which contains only green pigments, is illuminated by a laser light of wavelength 0.6328 mm. It would appear to be
JIPMER - 2011
JIPMER
Physics
Wave optics
The north pole of a long horizontal bar magnet is being brought closer to a vertical conducting plane along the perpendicular direction. The direction of the induced current in the conducting plane will be
JIPMER - 2011
JIPMER
Physics
Electromagnetic induction
The respective speeds of five molecules are 2, 1.5, 1.6, 1.6 and
$1.2 \, km \, s^{-1}$
, the most probable speed in
${km\, s^{-1}}$
will be
JIPMER - 2011
JIPMER
Physics
kinetic theory
The displacement of a particle is given by
$x = a_0 + \frac{a_1 t}{2} - \frac{a_2 t^2}{3}$
, what is its acceletion ?
JIPMER - 2011
JIPMER
Physics
Motion in a straight line
A uniform electric field and a uniform magnetic field are produced, pointed in the same direction. An electron is projected with its velocity pointing in the same direction
JIPMER - 2010
JIPMER
Physics
Moving charges and magnetism
At room temperature, copper has free electron density of
$8.4 \times {10}^{28}m^{-3}$
. The electron drift velocity in a copper conductor of cross-sectional area of
$ {10}^{-6}m^{2}$
and carrying a current of 5.4 A, will be
JIPMER - 2010
JIPMER
Physics
Electromagnetic induction
The blood cells retain their normal shape in solutions which are
JIPMER - 2010
JIPMER
Chemistry
Solutions
Compound formed by electrolysis of a mixture of ethanol and NaCl is
JIPMER - 2010
JIPMER
Chemistry
GROUP 1 ELEMENTS
The equivalent resistance across A and B is
JIPMER - 2010
JIPMER
Physics
Current electricity
$\mu_0$
and
$\varepsilon_0$
denote the permeability and permittivity of free space, the dimensions of
$\mu_0 \varepsilon_0$
are
JIPMER - 2010
JIPMER
Physics
physical world
Which of the following is known as oil of vitriol ?
JIPMER - 2010
JIPMER
Chemistry
p -Block Elements
If Young's double slit experiment, is performed in water
JIPMER - 2010
JIPMER
Physics
Wave optics
In the circuit shown in the given figure, the resistances
$R_1$
and
$R_2$
are respectively
JIPMER - 2010
JIPMER
Physics
Current electricity
A galvanometer acting as a voltmeter should have
JIPMER - 2010
JIPMER
Physics
Current electricity
A capacitor of capacitance
$ 5 \mu F $
is connected as shown in the figure. The internal resistance of the cell is
$ 0.5 O $
The amount of charge on the capacitor plates is
JIPMER - 2010
JIPMER
Physics
Current electricity
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