Question:

2.The following observations were taken for determining surface tension o of water by capillary method: diameter of capillary, D = 1.25 * 10 ^ – 2 rise of water, h = 1.45 * 10 ^ – 2 * m Using g = 9.8 * m / s ^ 2 and the simplified relation sigma = (mhg)/2 * 10 ^ 3 * Nm the possible error in surface tension is closest to

Options :

  • a) 10%
  • b) 0.15%
  • c) 1.5%
  • d) 2.4%

Answer :

c) 1.5%

Answer Steps :

Solution :-

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