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Physics Quiz 12

  • The weight of a body is

    • the same everywhere on the surface of the earth
    • maximum at the poles
    • maximum at the equator
    • more on the hills than in the plains
  • Ball pen works on the principle of

    • Viscosity
    • Boyle’s law
    • Gravitational force
    • Capillarity and surface tension
  • At what temperature a body will not radiate any heat energy?

    • 0 ° C
    • 273 ° C
    • 100 ° C
    • -273 ° C
  • In a standing wave the distance between a node and adjacent anti-node is

    • 3 λ/2
    • λ/2
    • λ/4
    • 3 λ/4
  • A telescope and a microscope differ in that

    • both are different instruments
    • telescope has eyepiece with larger focal lengths than the objective lens
    • telescope has objective of large focal lengths and eyepiece of smaller focal lengths
    • None of these
  • The center of the Newton’s rings pattern is dark, because

    • the light undergoes a phase change π
    • the glass plate and the plano – convex lens are in contact with each other at the centre
    • the light undergoes a phase change 2π
    • the light undergoes a phase change π/2
  • Galvanometer can be converted into a voltmeter by using

    • a low resistance in series
    • a low resistance in parallel
    • a high resistance in parallel
    • a high resistance in series
  • The apparatus used in submarines to give clear view of the objects on the surface of the ocean or ground is known as

    • periscope
    • sextant
    • stereoscope
    • telescope
  • Which metal is commonly used for making an Electro-magnet?

    • Copper
    • Iron
    • Nickel
    • Cobalt
  • Kilowatt hour is a unit of

    • Energy
    • Power
    • Electric charge
    • Current

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Physics Quiz 10

Imp. scientific names of Plants/Trees with pictures, English & Hindi Names