A coaxial cylinder made of glass is immersed in a liquid of surface tension S . The radius of the inner and outer surface of the cylinder are R 1 and R 2 respectively. Height till which liquid will rise is (Density of liquid is ρ )

Question

A coaxial cylinder made of glass is immersed in a liquid of surface tension S . The radius of the inner and outer surface of the cylinder are R 1 and R 2 respectively. Height till which liquid will rise is (Density of liquid is ρ ), 2 S R 2 ρ g, 2 S R 1 ρ g, S R 2 - R 1 ρ g, 2 S R 2 - R 1 ρ g

MARKS App · Accepted Answer

Net upward force = 2 π R 2 S + 2 π R 1 S C o n t a c t a n g l e = 0 o ∴ Capillary rise is given by h = 2 π S R 1 + R 2 π R 2 2 - R 1 2 ρ g = 2 S R 2 - R 1 ρ g

Search any question & find its solution

Looking for more such questions to practice?