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प्रश्न
Give two reasons for use of mercury as a barometric liquid.
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उत्तर
Two advantages of using mercury as barometric liquid:
(i) The density of mercury is greater than that of all the liquids, so only 0.76m height of mercury column is needed to balance the normal atmospheric pressure.
(ii) The mercury neither wets nor sticks to the glass tube therefore it gives the correct reading.
संबंधित प्रश्न
Fill the missing word in the blank spaces in the following statements:
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The atmospheric pressure is nearly 105 Pa.
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State two factors which affect the atmospheric pressure as we go up.
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Draw a neat and labeled diagram to explain its construction and working.
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