A U- tube contains water and methlated spiritseparated by mercury . Themercury columns in the two arms are in level with 10.0 cmof spirit in the other. What is the specific grvity of spirit ?

A U- tube contains water and methlated spiritseparated by mercury . Th

1.	A U- tube contains water and methlated spiritseparated by mercury . Themercury columns in the two arms are in level with 10.0 cmof spirit in the other. What is the specific grvity of spirit ?
Answer» <P> SOLUTION : Pressure at A and B are equal . `thereforeP_(1)=P_(2)` `thereforeh_(1)rho_(1)g=h_(2)rho_(2)g` `thereforerho_(2)=(h_(1)rho_(1))/(h_(2))` `=(10xx1)/(12.5)` `=0.8gcm^(-3)` Relative DENSITY of spirit `=("Density of spirit")/("Density of water")` `=(0.8)/(1)=0.8`