Question:

Water rises up to a height ‘h1’ in a capillary tube immersed vertically in water. When this whole arrangement is taken to a depth ‘d’ in a mine, the water level rises upto a height ‘h2’ If ‘R’ is the radius of the earth, then the ratio ‘h1/ h2’ is:

Options :

  • (a) (R - d)/(R + d)
  • (b) 1 - d/R
  • (c) 1 + d/R
  • (d) (R + d)/(R - d)

Answer :

(b) 1 – d/R

Answer Steps :

Step 1:

Step 2:

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