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  1. Water will not be vapourised if

  2. A.

     The temperature is 0°C

    B.

     The humidity is 0%

    C.

     The humidity is 100%

    D.

     The temperature is 100°C

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  3. Relative humidity is expressed as

  4. A.

     Grams

    B.

     Kilograms

    C.

     Percentage

    D.

     Ratio

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  5. According to special theory of relativity the mass of a particle

  6. A.

     Increases with increase in velocity with respect to an observer.

    B.

     Decreases with increase in velocity.

    C.

     Decreases with decrease in velocity.

    D.

     Is independent of its velocity.

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  7. Bolometer is used to measure

  8. A.

     Frequency

    B.

     Temperature

    C.

     Velocity

    D.

     Wavelength

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  9. Boyle's law relates to

  10. A.

     Kinetic Theory of Gases

    B.

     Viscosity of Liquids

    C.

     Elasticity of Solids

    D.

     Plasticity of Solids

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  11. Charles's law is based on

  12. A.

     Solid

    B.

     Liquid

    C.

     Gas

    D.

     None of the above

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  13. The ''Greenhouse effect' is mainly due to increase in atmospheric

  14. A.

     Ozone

    B.

     Nitrogen

    C.

     Sulphur dioxide

    D.

     Carbon dioxide

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  15. Thermohaline circulation is mainly due to

  16. A.

     Cold, dense ocean water sinking and warmer water replacing it

    B.

     Winds causing circulation of ocean water

    C.

     Warmer, less dense water sinking in the ocean and cold water replacing it

    D.

     Warm water being added to the ocean due to industial waste

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  17. Which of the following device is used to measure humidity?

  18. A.

     Hydrometer

    B.

     Hygrometer

    C.

     Psycho Meter

    D.

     Anemometer

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  19. Which set of conditions represents the easiest way to liquify a gas ?

  20. A.

     Low temperature and high pressure

    B.

     High temperature and low pressure

    C.

     Low temperature and low pressure

    D.

     High temperature and high pressure

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