the hight of the mercury collomn in a barometer in a culcutta laboratory was recorded to be 75 cm. calculate this pressure in SI and CGS unit using the following data :- specific gravity of the mercury = 13.6, density of water = 10^3 kg/m^3 , g= 9.8 m/s^2 at calcutta. 

Asked by Utkarsh Sinha | 13th Aug, 2014, 08:22: AM

Expert Answer:

Given :
Height of the column =75 cm = 75 × 10-2 m
Density of mercury = 13.6 × 10 3 kg/m 3
g = 9.8 m / s 2

In SI units: 
 
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In CGS units:
 
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or 
 
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Answered by Jyothi Nair | 13th Aug, 2014, 09:07: AM