Question

ii) Two capillary tubes of radii 0.3 cm and 0.6 cm are dipped in the same liquid. The ratio of heights

through which the liquid will rise in the tubes is -
​

Answer 1

Explanation:

By using rise in capillary tube formula

h=

ρgr

2Tcosθ

h

A

=

ρ(0.2)g

2T(1)

---------(1)

h

B

=

ρ(0.4)g

2T(1)

---------(2)

Dividing (1) and (2) we get

h

B

h

A

=

0.2

0.4

=2

Hence, ratio of heights in A and B is 2:1