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Physics Mock Test - 10
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  • Question 1/50
    5 / -1
    Identify the conductor having the highest resistivity.
  • Question 2/50
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    Hydrogen atom does not emit X-rays because
  • Question 3/50
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    An electric dipole in a constant external electric field has net force zero on it. This means
  • Question 4/50
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    In the Rutherford’s Model of the Atom, what was the observation due to alpha particles scattering?
  • Question 5/50
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    A wavefront is defined as a surface of ______________ phase
  • Question 6/50
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    An experiment had two wires P and Q of the same resistance at room temperature. When the wires were heated, it was noticed that the resistance of wire P increased and that of wire Q decreased. What can be inferred from this experiment?
  • Question 7/50
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    Consider the following statements

    1. Kirchhoff's Voltage Law is based on Kirchoff’s second law.

    2. Kirchoff’s second law represents the conservation of energy.

    Which of the following statements is/are correct?

  • Question 8/50
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    In a Van de Graaff generator, the potential difference between the surfaces of the small and large spherical conductors is independent of
  • Question 9/50
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    For a myopic eye, the near point ___________
  • Question 10/50
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    The magnification of a compound microscope is
  • Question 11/50
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    In Coulomb’s law, \(F = \frac{{k\left( {{q_1}{q_2}} \right)}}{{{r^2}}}\), constant k is expressed as (consider air as the medium):
  • Question 12/50
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    What is the work done in moving a charge of 5C between two points having a potential difference of 11V?
  • Question 13/50
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    The output of a NAND gate is 0 if the inputs are _______.
  • Question 14/50
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    When a coil moves towards a stationary magnet, the induced emf does not depend on: 
  • Question 15/50
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    Which of the following options is false regarding Ohm's law?
  • Question 16/50
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    In the series RLC circuit if the current is leading the voltage, then which of the following condition is correct? (All the symbols have their usual meaning)
  • Question 17/50
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    The process of super imposing message signal on high frequency carrier wave is called
  • Question 18/50
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    In the photoelectric effect ejection of electrons from the surface of a metal takes place when
  • Question 19/50
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    Which of the following equation shows the relationship between current (i) and drift velocity (Vd). (n is number of free electrons/m3, A is the cross-sectional area, e is change on an electron, R is resistance)
  • Question 20/50
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    What should be the angle between magnetic moment and magnetic field for maximum work done in a magnetic field?
  • Question 21/50
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    Which of the following is an application of a photodiode?
  • Question 22/50
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    Electromagnetic waves are transverse in nature is evident by:
  • Question 23/50
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    An object is placed at the Centre of the curvature of a concave mirror of a focal length of 16 cm. If the object is shifted by 8 cm towards the focus, the nature of the image would be 
  • Question 24/50
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    The electromagnetic waves can be produced by-
  • Question 25/50
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    Impedence of a coil is 100 ohm at frequency 50 Hz, then its impedence on 150 Hz is:
  • Question 26/50
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    When the space between the parallel plate capacitor is filled with a dielectric, than the capacitance of the capacitor will:
  • Question 27/50
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    Which one among the following waves are called waves of heat energy?
  • Question 28/50
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    If the frequency of the AC voltage is increased in the circuit containing a capacitor, then the capacitive reactance will:
  • Question 29/50
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    Which of the following is NOT one of Faraday's laws?
  • Question 30/50
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    Electric flux can be determined by:
  • Question 31/50
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    Inside a hollow conducting sphere electric field
  • Question 32/50
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    A Nicol prism is based on the principle of
  • Question 33/50
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    An electric refrigerator rated 400 W operates 8 hours/day. What is the cost of energy required to operate it for 30 days at Rs 2.50 per kW h?
  • Question 34/50
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    Refer to the following diagram to calculate the ammeter reading (in A).

  • Question 35/50
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    Binding energy of a nucleus is:
  • Question 36/50
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    In Youngs experiment, when the distance between slit and screen is doubled, while separation of slit is halved, then fringe width will be:
  • Question 37/50
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    The electric field strength and  electrostatic potential due to a dipole depends upon distance r as
  • Question 38/50
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    A moving electrical charge produces:
  • Question 39/50
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    If the radius of a circular loop of 6 turns is 5 cm and the loop is carrying the current of 10 ampere then what is the magnitude and direction of the magnetic dipole moment?

  • Question 40/50
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    A β-particle is emitted by radioactive nucleus at the time of conversion of ________.
  • Question 41/50
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    The outside rear-view mirror of modern automobiles is marked with warning “objects in mirror are closer than they appear”. Such mirrors are
  • Question 42/50
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    A magnet is freely suspended in a constant magnetic field of strength B. How much work will be done if the magnet is deflected by an angle 90° from the initial direction?
  • Question 43/50
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    Total internal reflection of a ray of light is possible when the (ic = critical angle, i = angle of incidence)
  • Question 44/50
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    The torque on a rectangular coil placed in a uniform magnetic field is large when the
  • Question 45/50
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    A message signal of frequency 20 MHz is to be transmitted. Which of the following mode of propagation is the most suitable?
  • Question 46/50
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    The distance between the plates of a parallel plate capacitor is increased then the capacitance will-
  • Question 47/50
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    The resistance of a metallic conductor increases with _________ in temperature.
  • Question 48/50
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    The resistance of a p - n junction in forward bias is –
  • Question 49/50
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    Which of the following accelerate the particles in cyclotron?
  • Question 50/50
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    When 4 amp current flows through a motor then power consumed is 20 watt, and resultant potential difference is 220 volt. The applied e.m.f. is :
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