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प्रश्न
Mention two demerits of a simple barometer and state how they are removed in a Fortin barometer .
उत्तर
In a simple barometer, there is no protection for the glass tube but in Fortin's barometer, this defect has been removed by enclosing the glass tube in a brass case.
In a simple barometer, a scale cannot be fixed with the tube (or it cannot be marked on the tube) to measure the atmospheric pressure but Fortin's barometer is provided with a vernier calipers to measure the accurate reading.
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संबंधित प्रश्न
How is the barometric height of a simple barometer affected if A drop of liquid is inserted inside the tube?
State two factors which affect the atmospheric pressure as we go up.
Explain briefly the factors that affect Atmospheric Pressure.
What is the value of atmospheric pressure?
Give reason:
Air pressure decreases with increasing altitude.
Define one atmosphere.
As we go from the equator of the earth to pole of the earth, the value of acceleration due to gravity ______.
The highest air pressure at sea level was recorded at ______ Russia.
Define High pressure
The human lung is well adapted to breathe at a pressure of ______ k Pa.
