5. 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
Explanation- (c) 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 Hence the pressure difference will be zero.
(9)