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

25 Questions | Total Attempts: 51

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

B. Sc. Sem-VI Instructions for examination: The Quiz is based on the R. T. M. Nagpur University Syllabus of B. Sc. (Physics). B. Sc. Final Year (Semester VI) Course-PHYSICS - Paper-I (601) (Relativity, Nuclear physics and Bio Physics) 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. 
    According to variation of mass with velocity the relativistic mass m is given by (where m0 is rest mass of an object)
    • A. 
    • B. 
    • C. 
    • D. 
  • 2. 
    A frame of reference has four coordinates, x, y, z, and t is referred to as the_____________
    • A. 

      Space-time reference

    • B. 

      Four-dimensional plane

    • C. 

      Non-inertial frame of reference

    • D. 

      Inertial frame of reference

  • 3. 
    Consider the list of physical properties below. According to special relativity, which ones are dependent on the observer speed?
    • A. 

      Time

    • B. 

      Energy

    • C. 

      Length

    • D. 

      All of these

  • 4. 
    The purpose of the Michelson-Morley experiment was to
    • A. 

      Detect possible motion of the sun relative to the ether.

    • B. 

      Detect possible motion of the Earth relative to the sun.

    • C. 

      Determine the velocity of light.

    • D. 

      Detect possible motion of the Earth relative to the ether.

  • 5. 
    The equation E = mc2 means that
    • A. 

      Mass and energy when combined travel at the speed of light.

    • B. 

      Mass is really a bundle of energy traveling at the speed of light.

    • C. 

      Energy and mass are different forms of the same thing.

    • D. 

      Mass and energy when combined travel at twice the speed of light.

  • 6. 
    In Nuclear fission reaction?
    • A. 

      A neutron is split into a neutron and proton.

    • B. 

      Two light nuclei are combined into a heavier one.

    • C. 

      A heavy nucleus is fragmented into lighter ones.

    • D. 

      A proton is split into three quarks.

  • 7. 
    Which of the following particle is not accelerated by cyclotron?
    • A. 

      Electron

    • B. 

      Alpha particle

    • C. 

      Proton

    • D. 

      Neutron

  • 8. 
    Cyclotron was invented by
    • A. 

      Sir Ernest Lawrence

    • B. 

      Sir Stephen Poplawski

    • C. 

      Sir Arthur Wynne

    • D. 

      Sir John Biggins

  • 9. 
    Ionization of gas is produced when nuclear radiations pass through it'. This is the principle of which of the following detectors?
    • A. 

      Liqud crystal counter

    • B. 

      Flow counter

    • C. 

      Geiger Muller counter

    • D. 

      None of the above

  • 10. 
    Mass defect and binding energy are equivalent 
    • A. 

      True

    • B. 

      False

    • C. 

      May be

    • D. 

      None of the above

  • 11. 
    Gamma-ray photons have:
    • A. 

      No mass and an electric charge of +1

    • B. 

      No mass and an electric charge of +2

    • C. 

      No mass and an electric charge of -1

    • D. 

      No mass and no electric charge

  • 12. 
    A helium nucleus is also known as
    • A. 

      Beta particle.

    • B. 

      Gamma particle

    • C. 

      Alpha particle.

    • D. 

      None of the above

  • 13. 
    What type of Reaction takes place in sun?
    • A. 

      Double beta decay

    • B. 

      Spontaneous fission

    • C. 

      Nuclear fission

    • D. 

      Nuclear fusion

  • 14. 
    In Nuclear fusion reaction –
    • A. 

      Two light nuclei of low mass to produce a light nucleus

    • B. 

      Two heavy nuclei of low mass to produce a light nucleus

    • C. 

      Two light nuclei of low mass to produce a heavy nucleus

    • D. 

      None of the above

  • 15. 
    In Nuclear reactor which of the following element used as Fuel
    • A. 

      Radium

    • B. 

      Plutonium

    • C. 

      Uranium

    • D. 

      None of the mentioned

  • 16. 
    Biophysics is the branch of science which deals with the study of
    • A. 

      Biological principles involved in Physics.

    • B. 

      Chemical principles involved in biology.

    • C. 

      Physical principles involved in biology.

    • D. 

      None of the above

  • 17. 
    Which one of the following radiations are more penetrating (more Energetic)
    • A. 

      Alpha Radiations

    • B. 

      Beta Radiation

    • C. 

      Gamma Radiation

    • D. 

      All of the above

  • 18. 
    Who discovered radioactivity?
    • A. 

      Henri Becquerel

    • B. 

      Louis Pasteur

    • C. 

      Pierre Curie

    • D. 

      Antoine Lavoisier

  • 19. 
    The particles which are also emitted during Beta decay are
    • A. 

      Neutron

    • B. 

      Proton

    • C. 

      Electrons

    • D. 

      Neutrinos

  • 20. 
    The short-lived isotopes of radioactive element emit more energetic alpha particles than long-lived ones. This is the statement of which law
    • A. 

      Neutrino theory

    • B. 

      Gamow’s theory

    • C. 

      Geiger Nuttal law

    • D. 

      None of the above

  • 21. 
    What is the principle of ultrasonography?
    • A. 

      Medical imaging technique that uses high frequency sound waves and their echoes

    • B. 

      Medical imaging technique that uses low frequency sound waves and their echoes

    • C. 

      Medical imaging technique that uses medium frequency sound waves and their echoes

    • D. 

      Medical imaging technique that uses ultra-low frequency sound waves and their echoes

  • 22. 
    The study and analysis of signals arising due to Electrical activity of brain is called as
    • A. 

      Electroencephalogram or EEG

    • B. 

      Electrocardiogram or ECG

    • C. 

      Electro-orthogram or EOG

    • D. 

      Electro-kidneygram or EKG

  • 23. 
    In normal ECG, P wave signifies
    • A. 

      Arterial deionization

    • B. 

      Arterial depolarization

    • C. 

      Muscular depolarization

    • D. 

      Muscular deionization

  • 24. 
    The main function of _________system is to supply pure blood to the body parts and collect impure blood from the body
    • A. 

      Cardiovascular

    • B. 

      Cardiographic

    • C. 

      Carcinogenetic

    • D. 

      Cardionuclear

  • 25. 
    Biopotential at cellular level is due to
    • A. 

      Depolarization and repolarization of the cell

    • B. 

      Depolarization and repolarization of the Muscles

    • C. 

      Dissociation and association of the Muscles

    • D. 

      Dissociation and association of the cell

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