Question

The radii of the two columns in U tube are $\rho$ (angle of contact is 0°) is filled in it the level difference of liquid in two arms is h The surface tension of liquid is (g = acceleration due to gravity)

• A. (a)
• A. (b)
• A. (c)
• A. (d)

Answer 1

(a) Let $\mathrm { r } _ { 1 }$ and respectively then

Where s is the surface tension of liquid

And

$\therefore$ Difference in levels of liquid in two arms of U tube is