SSC Geography Sample Paper NCERT Sample Paper-5

  • question_answer
    Which of the following is/are not correct?
    1. The unit of measurement of Sun's radiation is Langley
    2. The incoming solar radiation to earth is 2cal/cm2-min
    3. The mean sea level pressure of atmosphere is 1013.2 bar
    4. We are normally not aware of atmospheric pressure because it acts in all directions. Select the correct answer from the codes given below.

    A)  1, 2, 3 and 4    

    B)  2, 3 and 4

    C)  3 only 

    D)  None of these

    Correct Answer: A

    Solution :

    [a] The mean sea level pressure (MSLP) is the atmospheric pressure at sea level or (when measured at a given elevation on land) the station pressure reduced to sea level assuming that the temperature falls at a lapse rate of 6.5 K per km in the fictive layer of air between the station and sea level. Average sea-level pressure is 101.325 kPa (1013.25 mbar)

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