Home / General Knowledge / Physics :: Section 1

General Knowledge :: Physics

  1. Natural radioactivity was discovered by

  2. A.
    Marie Curie
    B.
    Ernest Rutherfor
    C.
    Henri Becquerel
    D.
    Enrico Fermi

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. Planets are

  4. A.
    luminous heavenly bodies revolving around a star
    B.
    non-luminous heavenly bodies
    C.
    luminous heavenly bodies that twinkle
    D.
    luminous heavenly bodies that do not twinkle

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. One nanometer is equal to

  6. A.
    10-6m
    B.
    10-8m
    C.
    10-9m
    D.
    10-5m

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. Mica is used in electrical appliances such as electric iron because mica is

  8. A.
    a good conductor of heat but a bad conductor of electricity
    B.
    a bad conductor of heat but a good conductor of electricity
    C.
    a good conductor of heat as well as electricity
    D.
    a bad conductor of heat as well as electricity

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. It is easier to roll a barrel full of coal tar than to pull it because

  10. A.
    the full weight of the barrel comes into play when it is pulled
    B.
    the rolling friction is much less than the sliding friction
    C.
    more surface area of the barrel is in contact with the road when it is pulled
    D.
    coal tar is a liquid and it flows in the barrel when it is rolled

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. Minimum number of unequal vectors which can give zero resultant are

  12. A.
    two
    B.
    three
    C.
    four
    D.
    more than four

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. Intensity of sound has

  14. A.
    an object existence
    B.
    a subject existence
    C.
    no existence
    D.
    both subjective and objective existence

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from

  16. A.
    east
    B.
    west
    C.
    northeast
    D.
    southeast

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is

  18. A.
    1200 m
    B.
    0.33 km
    C.
    3.33 km
    D.
    33 km

    View Answer

    Workspace

    Discuss Discuss in Forum