- #1
Janiceleong26
- 276
- 4
Homework Statement
Homework Equations
P=hρg
The Attempt at a Solution
The length of mercury column ...
(1) on the left side (exposed to atmosphere) would be ( 760 + x/2 )mm
(2) on the right side (exposed to atmosphere) would be ( 760 + (50-y)/2 )mm
(3) on the left (exposed to air at pressure P) would be ( 760 -x/2) mm
(4) on the right (exposed to air at pressure P) would be ( 760- (50-y)/2 ) mm
By equating (1)=(2) or (3)=(4) ,
x=50-y
A and D are out as x and y does not satisfy this equation.
I chose B as (by assuming from the diagram) x is shorter than y, but I do not know how to calculate the Air pressure P.. Any hints? Thanks in advance