Physics

Problem

A capillary tube is immersed vertically in water and the height of the water column is

x

. When this arrangement is taken into a mine of depth

d

, the height of the water column is

y

. If

R

is the radius of earth, the ratio

\frac{x}{y}

is: a.

\left(1 - \frac{d}{R}\right)

\left(1 - \frac{2d}{R}\right)

\left(\frac{R-d}{R+d}\right)

\left(\frac{R+d}{R-d}\right)