Question

Example 2.7: A capillary tube of radius
5 x 104m is immersed in a beaker filled
with mercury. The mercury level inside the
tube is found to be 8 x 10-mi below the level
of reservoir. Determine the angle of contact
between mercury and glass. Surface tension ( log table )

of mercury is 0.465 N/m and its density is
13.6 x 10 kg/m'. (g=9.8 m/s2)​

Answer 1

Answer:

5 × 104 520 is the answer and 80