In the fig above if the atmospheric pressure is 760mm, the pressure of the chamber G is
Attached Figure / Diagram
A
660mm
B
690mm
C
830mm
D
860mm
Verified Correct Answer: C.
Physical Principles & Numerical Solution
P\(_G\) = P\(_{atm}\) + height due to mercury column
P\(_G\) = 760 + (10 - 3) = 760 + 70 = 830mm
(1cm = 10mm)
Source: Myschool Past Questions Archive (Record #41723)