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Question Paper (Section wise)

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Question 1
Positive Marks: 4 / Negative Marks: 1
  • 1)

    The given circuit has two ideal diodes connected as shown in the figure below. The current flowing through the resistance R1 will be

     

     

    1. 3.13 A

    2. 2.5 A

    3. 10.0 A

    4. 1.43 A

  • 2)

    Two rotating bodies A and B of masses m and 2 m with moments of inertia IA and IB (IB > IA) have equal kinetic energy of rotation. If LA and LB be be their angular momenta respectively, then

  • 3)

    One mole of an ideal monatomic gas undergoes a process described by the equation PV3 = constant. The heat capacity of the gas during this process is

    1. R

    2. 2 R

  • 4)

    A filament bulb (500W, 100V) is to be used in a 230 V main supply. When a resistance R is connected in series, it works perfectly and the bulb consumes 500 W. the value of R is

    1. 13 Ω

    2. 230 Ω

    3. 46 Ω

    4. 26 Ω

  • 5)

    An air bubble in a glass slab with refractive index 1.5 (near normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face. The thickness (in cm) of the slab is

    1. 16

    2. 8

    3. 10

    4. 12

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    • 5
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