Online Preliminary Examination 2020 For B.Sc.-II Semester,Organized By Department Of Physics,Sgmm Hingna,Dist-nagpur

25 Questions | Total Attempts: 67

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Online Preliminary Examination 2020 For B.Sc.-II Semester,Organized By Department Of Physics,Sgmm Hingna,Dist-nagpur - Quiz

B. Sc. Sem II Instructions: The Quiz is based on the R. T. M. Nagpur University Syllabus of B. Sc. (Physics). B. Sc. First Year (Semester II) Course – PHYSICS - Paper-I (201) (Oscillations, Kinetic theory of gases and Thermodynamics) The Quiz consist of total 25 multiple choice questions. Each question carry TWO marks All Questions are Compulsory. No negative marking Has a time limit of 120 minutes Has a pass mark of 50% You can download certificate after finishing the quiz.


Questions and Answers
  • 1. 
    In simple harmonic (SHM), the maximum acceleration of a particle moving is
    • A. 

      ω2/r

    • B. 

      ω.r

    • C. 

      ω2∙r

    • D. 

      ω

  • 2. 
    In a gas the transport of momentum gives rise to the phenomenon of:
    • A. 

      Viscocity

    • B. 

      Conduction

    • C. 

      Diffusion

    • D. 

      Volume

  • 3. 
    When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as
    • A. 

      Simple pendulum

    • B. 

      Compound pendulum

    • C. 

      Torsional pendulum

    • D. 

      Second’s pendulum

  • 4. 
    Quality Factor (Q) for the Damped Oscillator is defined as:
    • A. 

      Q = 2π (energy lost per period/ energy stored in the system)

    • B. 

      Q = 2π (energy stored in the system x energy lost per period)

    • C. 

      Q = 2π (energy stored in the system /energy lost per period)

    • D. 

      Q = 2π (energy lost per period + energy stored in the system)

  • 5. 
    Forced vibration is known as
    • A. 

      Driven harmonic vibration

    • B. 

      Simple harmonic vibration

    • C. 

      Simple harmonic vibration

    • D. 

      Free vibration

  • 6. 
    For Boyle's law to hold good, the gas should be ___________
    • A. 

      Real and of constant mass and temperature

    • B. 

      Real and at constant temperature but variable mass

    • C. 

      Perfect and of constant mass and temperature

    • D. 

      Perfect and at constant temperature but variable mass

  • 7. 
    The temperature of gas molecule in the container is _______ proportional to mean free path of a gas molecule.
    • A. 

      Inversely

    • B. 

      No effect

    • C. 

      Directly

    • D. 

      None of above

  • 8. 
    A real gas most closely approaches the behavior of an ideal gas under conditions of:
    • A. 

      Low Pressure and Temperature

    • B. 

      Low Pressure and high Temperature

    • C. 

      High Pressure and Temperature

    • D. 

      High Pressure and low Temperature

  • 9. 
    Which one do you like?
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 10. 
    The number of degrees of freedom of a diatomic gas molecule is:
    • A. 

      3

    • B. 

      4

    • C. 

      5

    • D. 

      6

  • 11. 
    The term N.T.P. stands for.......
    • A. 

      Nominal temperature and pressure

    • B. 

      Normal thermodynamic pressure

    • C. 

      Normal temperature and pressure

    • D. 

      Natural temperature and pressure

  • 12. 
    The constant used in pressure correction by Vander Waal is
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 13. 
    First law of thermodynamics is ________
    • A. 

      Internal Energy= (Heat added) x (work done)

    • B. 

      Internal Energy= (Heat added) / (work done)

    • C. 

      Internal Energy= (Heat added) – (work done)

    • D. 

      Internal Energy=(Heat added) + (work done)

  • 14. 
    "If two system are both in equilibrium with a third system, they are in thermal equilibrium with each other" This is the statement of
    • A. 

      Third law of thermodynamics

    • B. 

      Zeroth law of thermodynamics

    • C. 

      First law of thermodynamics

    • D. 

      Second law of thermodynamics

  • 15. 
    Total amount of energy in the universe is
    • A. 

      Increasing

    • B. 

      Decreasing

    • C. 

      Constant

    • D. 

      None of the above

  • 16. 
    A reversible cycle has following processes.
    • A. 

      4 adiabatic processes

    • B. 

      4 isothermal processes

    • C. 

      2 isothermal and 2 adiabatic processes

    • D. 

      None of the mentioned

  • 17. 
    An increase in enthalpy results increase in
    • A. 

      Mass

    • B. 

      Volume

    • C. 

      Internal energy

    • D. 

      Pressure

  • 18. 
    The closed system can be represented by equation
    • A. 

      DQ = dU x pdV

    • B. 

      DQ = dU - pdV

    • C. 

      DQ = dU + pdV

    • D. 

      None of the above

  • 19. 
    The average kinetic energy is given by_________
    • A. 

      0.5 KT

    • B. 

      1.5 KT

    • C. 

      2.5 KT

    • D. 

      3.5 KT

  • 20. 
    When Helium expands at room temperature
    • A. 

      Cooling is produced

    • B. 

      Heating is produced

    • C. 

      Neither heating nor cooling is produced

    • D. 

      None

  • 21. 
    "It is impossible to reduce any system to the absolute zero of temperature in a finite number of operations." This is the statement of
    • A. 

      First law of thermodynamics

    • B. 

      Second law of thermodynamics

    • C. 

      Third law of thermodynamics

    • D. 

      None of the above

  • 22. 
    Example of reversed heat engine is
    • A. 

      Heat pump

    • B. 

      Refrigerator

    • C. 

      Heat pump and Refrigerator

    • D. 

      None of the above

  • 23. 
    In a refrigeration system, the expansion device is connected between the
    • A. 

      Compressor and condenser

    • B. 

      Evaporator and compressor

    • C. 

      Receiver and evaporator

    • D. 

      Condenser and receiver

  • 24. 
    Which of the following gas will satisfy Boyle's law over a wider range of temperatures and pressures?
    • A. 

      Hydrogen

    • B. 

      Oxygen

    • C. 

      Helium

    • D. 

      Carbon monoxide

  • 25. 
    Reynolds law hold good at constant 
    • A. 

      Pressure

    • B. 

      Temparature 

    • C. 

      Volume

    • D. 

      None of the above

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