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

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

A capillary tube is immersed vertically in water and the height of the water column is xx. When this arrangement is taken into a mine of depth dd, the height of the water column is yy. If RR is the radius of earth, the ratio xy\frac{x}{y} is: (1) (1−dR)\left(1 - \frac{d}{R}\right) (2) (1−2dR)\left(1 - \frac{2d}{R}\right) (3) (R−dR+d)\left(\frac{R-d}{R+d}\right) (4) (R+dR−d)\left(\frac{R+d}{R-d}\right)

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