Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
The pressure is given by P = h Xp Xg.
Where h is the height of the liquid column, p is the density of the liquid, g is the acceleration due to gravity.
Density of mercury is = 1.36 X104 kg/m3.
h = height of mercury column which is given = 75 cm = 0.75 m.
So pressure = 0.75 X 1.36 X104X9.8 = 9.996X104Nm-2.
APPEARS IN
संबंधित प्रश्न
The atmospheric pressure at sea level is nearly
We do not feel uneasy even under the enormous atmospheric pressure. Give a reason.
How does the pressure at a certain depth in sea water differ from that at the same depth in river water? Explain your answer.
Why is the barometric height used as unit to express the atmospheric pressure?
State two uses of a barometer.
How is the reading of a barometer affected when it is taken to (i) a mine, and (ii) a hill?
What is an altimeter? State its principle. How is its scale calibrated?
Why is it not advisable to use a fountain pen while travelling in an aeroplane?
High pressure is called ______.
The highest air pressure at sea level was recorded at ______ Russia.
