Question

the radius of a given capillary is 0.0335 cm. a liquid whose density is 0.866gm/cm^3 rises to a height of 2 cm in the liquid. calculate the surface tension of the liquid​

Answer 1

Answer:

Rise in the tube = h = 7 cm = 7× 10-2 m, Surface tension = T = 70 dynes/cm = 70 × 10-3 N/m, Acceleration due to gravity = g = 9.8 m/s2, Density of water = ρ = 1 ×10³ kg/m³, Angle of contact = θ = 0°

To Find: Radius of the tube = r =?

Solution:

The rise in the tube is given by

Capillary Action 01

∴ r = (2 × 70 × 10-3 × cos 0°) / (7× 10-2 × 1 ×10³ × 9.8)

∴ r = 2 × 10-4 m = 0.2 × 10-3 m = 0.2 mm

Ans: The radius of the capillary is 0.2 mm

Explanation:

please add me in brainliest answer please...