Advertisements
Advertisements
प्रश्न
State two uses of a barometer.
Advertisements
उत्तर
Two uses of barometer:
(a) To measure the atmospheric pressure.
(b) For weather forecasting
संबंधित प्रश्न
State two experiences that made you think that air exerts pressure.
Why does the liquid rise in a syringe when its piston is pulled up?
Why is the barometric height used as unit to express the atmospheric pressure?
Convert 1 mm of Hg into pascal. Take density of Hg = 13.6 x 103 kg m-3 and g = 9.8 m s-2 .
At a given place, a mercury barometer records a pressure of 0.70 m of Hg. What would be the height of water column if mercury in barometer is replaced by water? Take density of mercury to be = 13.6 × 103 kg m-3.
If there is low pressure at the equator, what will be the condition of air pressure in the Arctic Zone?
Give reason:
Air pressure decreases with increasing altitude.
Clouds float in atmosphere because of their low ______.
The small variations in pressure that exist largely determine the ______ and ______ patterns of the earth.
The increase in internal energy of 1 kg of water at 100°c when it is converted into steam at the same temperature and at 1 atmospheric pressure will be ______.
(density of steam is 0.6 kg m-3, latent heat of vaporisation of water = 2.25 × 106 J kg-1).
