Question

A siphon in use is demonstrated in the following figure. The density of the liquid flowing in siphon is 1.5 gm/cc. The pressure difference between the point P and S will be

• A. 10⁵ N/m
• B. 2 × 10⁵ N/m
• C. Zero
• D. Infinity

Answer 1

The correct option is C

Zero

As the both points are at the surface of liquid and these points are in the open atmosphere. So both point possess similar pressure and equal to 1 atm. Hence the pressure difference will be zero.