Advertisements
Advertisements
प्रश्न
Give two reasons for use of mercury as a barometric liquid.
Advertisements
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
Why does the liquid rise in a syringe when its piston is pulled up?
How is the barometric height of a simple barometer affected if Its tube is pushed down into the trough of mercury?
What is an altimeter? State its principle. How is its scale calibrated?
What is an aneroid barometer?
Draw a neat and labeled diagram to explain its construction and working.
The value of the atmospheric pressure at sea level is
As we go from the equator of the earth to pole of the earth, the value of acceleration due to gravity ______.
Humans are sensitive even to a small variations in pressure.
Define High pressure
What does low pressure and high pressure lead to?
