book free class
wiz-icon
MyQuestionIcon
MyQuestionIcon
JIPMER | 2013
Q. The internal resistance of a primary cell is 4Ω. It generates a current of 0.2A in an external resistance of 21Ω. The rate at which chemical energy is consumed in providing current is
  1. 0.42J/s
  2. 1J/s
  3. 0.8J/s
  4. 5J/s
View Solution
drop_down_image
Q. A balloon contains 500 m3 of helium at 27oC and 1 atmosphere pressure. The volume of helium at 3oC temperature and 0.5 atmosphere pressure will be
  1. 500 m3
  2. 700 m3
  3. 900 m3
  4. 1000 m3
View Solution
drop_down_image
Q. 220 V, 50 Hz, AC source is connected to an inductance of 0.2 H and a resistance of 20 Ω in series. What is the current in the circuit?
  1. 3.33 A
  2. 5 A
  3. 10 A
  4. 33.3 A
View Solution
drop_down_image
Q. A luminous object is placed at a distance of 30 cm from the convex lens of focal length 20 cm. On the other side of the lens, at what distance from the lens a convex mirror of radius of curvature 10 cm be placed in order to have an upright image of the object coincident with it
  1. 30 cm
  2. 60 cm
  3. 50 cm
  4. 12 cm
View Solution
drop_down_image
Q. Two rigid bodies A and B rotate with rotational kinetic energies EA and EB respectively. The moments of inertia of A and B about the axis of rotation are IA and IB respectively. If IA=IB/4 and EA/100=EB the ratio of angular momentum (LA) of A to the angular momentum (LB) of B is
  1. 25
  2. 5
  3. 5/4
  4. 1/4
View Solution
drop_down_image
Q. A body is thrown with a velocity of 9.8 m/s making an angle of 30o with the horizontal. It will hit the ground after a time
  1. 1 s
  2. 1.5 s
  3. 2 s
  4. 3 s
View Solution
drop_down_image
Q. Light travels faster in air than that in glass. This is accordance with
  1. corpuscular theory of light
  2. neither (a) nor (b)
  3. wave theory of light
  4. Both (a) and (b)
View Solution
drop_down_image
Q. A gas expands 0.25m3 at constant pressure 103N/m2. The work done is
  1. 250 N
  2. 250 J
  3. 250 W
  4. 2.5 erg
View Solution
drop_down_image
Q. The escape velocity for the earth is 11.2 km/s. The mass of another planet 100 times mass of earth and its radius is 4 times radius of the earth. The escape velocity for the planet is
  1. 112 km/s
  2. 24 km/s
  3. 280 km/s
  4. 56.0 km/s
View Solution
drop_down_image
Q. Minimum excitation potential of Bohr's first orbit in hydrogen atom is
  1. 3.6 eV
  2. 13.6 eV
  3. 10.2 eV
  4. 3.4 eV
View Solution
drop_down_image
Q. A radioactive element X23890 decays into Y22283. The number of β-particles emitted are
  1. 1
  2. 2
  3. 4
  4. 6
View Solution
drop_down_image
Q. A galvanometer acting as a voltmeter should have
  1. a low resistance in series with its coil
  2. a low resistance in parallel with its coil
  3. a high resistance in series with its coil
  4. a high resistance in parallel with its coil
View Solution
drop_down_image
Q. A transverse wave is represented by the equation y=y0sin(2πλ)(vtx). For what value of X is the particle velocity equal to two times the wave velocity?
  1. λ=πy0
  2. λ=πy02
  3. λ=2πy0
  4. λ=πy03
View Solution
drop_down_image
Q. In 0.2 s, the current in a coil increases from 2.0 A to 3.0A. If inductance of coil is 60mH, then induced current in external resistance of 3Ω will be
  1. 1A
  2. 0.5A
  3. 0.2A
  4. 0.1A
View Solution
drop_down_image
Q. A parallel plate condenser is filled with two dielectrics as shown in figure. Area of each pate is Am2 and the separation is d metre. The dielectric constants are K1 and K2 respectively. Its capacitance (in farad) will be :

466798_001d25d866e24f19a75349c6c7df3e65.png
  1. 20Ad(K1+K2K1K2)
  2. 20Ad(K1K2K1+K2)
  3. 0AK1K22(d2K1+d1K2)
  4. 0Ad(K1+K22K1K2)
View Solution
drop_down_image
Q. A car of mass 1000 kg moves on a circular track of radius 40 m. If the coefficient of friction is 1.28 then the maximum velocity with which the car can be moved is:
  1. 22.4 m/s
  2. 1000 m/s
  3. 112 m/s
  4. (0.64×40)(1000×100) m/s
View Solution
drop_down_image
Q. A black body has a wavelength of λ at temperature 2000 K. Its corresponding wavelength at temperature 3000 K will be
  1. 2λ3
  2. 3λ2
  3. 4λ9
  4. 9λ4
View Solution
drop_down_image
Q. Two simple pendulums of length 0.5 m and 2 m respectively are given small linear displacement in one direction at the same time. They will again be in the phase when the pendulum of shorter length has completed x oscillations, where x is:
  1. 1
  2. 3
  3. 2
  4. 5
View Solution
drop_down_image
Q. The working principle of a ball point pen is:
  1. Bernoullis theorem
  2. Surface tension
  3. Gravity
  4. Viscosity
View Solution
drop_down_image
Q. Two coherent light beams of intensities I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are :

  1. 5I and I
  2. 9I and 3I
  3. 9I and I
  4. 5I and 3I
View Solution
drop_down_image
Q. A battery of emf 10 V and internal resistance of 0.5 ohm is connected across a variable resistance R. The value of R for maximum power transfer is given by
  1. 0.5 Ω
  2. 1.00 Ω
  3. 2.0 Ω
  4. 0.25 Ω
View Solution
drop_down_image
Q. The work done in increasing the size of a soap film from 10cm×6m to 10cm×11cm is 3×104J. The surface tension of the film is:
  1. 1.0×102N/m
  2. 6.0×102N/m
  3. 1.5×102N/m
  4. 3.0×102N/m
View Solution
drop_down_image
Q. Ionisation potential of hydrogen atom is 13.6 eV. Hydrogen atom on the ground state rarely excited by monochromatic radiation of photon 12.1 eV. The special line emitted by a hydrogen atom according to Bohr's theory will be :
  1. One
  2. Two
  3. Three
  4. Four
View Solution
drop_down_image
Q. Progressive waves are represented by the equation y1=asin(ωtx) and y2=bcos(ωtx). The phase difference between waves is
  1. 0o
  2. 90o
  3. 45o
  4. 180o
View Solution
drop_down_image
Q. The equivalent resistance across A and B is
466831.JPG
  1. 2Ω
  2. 3Ω
  3. 4Ω
  4. 5Ω
View Solution
drop_down_image
Q. A point source of light is placed 4 m below the surface of water of refractive index 5/3. The minimum diameter of a disc which should be placed over the source on the surface of water to cut-off all light coming out of water is :
  1. 6m
  2. 3m
  3. 4m
  4. 2m
View Solution
drop_down_image
Q. The binding energy per nucleon is maximum in the case
  1. 24He
  2. 14156Ba
  3. 23592U
  4. 5626Fe
View Solution
drop_down_image
Q. The speed of air flow on the upper and lower surfaces of a wing of an aeroplane are v1 and v2 respectively. If A is the cross section area of the wing and ρ is the density of air, then the upward lift is :
  1. 12ρA(v1+v2)
  2. 12ρA(v1v2)
  3. 12ρA(v21v22)
  4. 12ρA(v21+v22)
View Solution
drop_down_image
Q. A moving body of mass m and velocity 3 km/h collides with a rest body of mass 2m and stick to it. Now the combined mass starts to move. what will be the combined velocity?
  1. 3 km/h
  2. 1 km/h
  3. 4 km/h
  4. 2 km/h
View Solution
drop_down_image
Q. For a gas, RCv=0.67. This gas is made up of molecules which are
  1. Mono atomic
  2. Poly atomic
  3. Mixture of diatomic and poly atomic molecules
  4. Diatomic
View Solution
drop_down_image