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Easy

Question

If the excess pressure inside a soap bubble is balanced by oil column of height 2 mm then the surface tension of soap solution will be C r equals 1 space a n d space d e n s i t y space d equals 0.8 g m divided by c c right parenthesis

  1. 3.9 straight N over straight m
  2. 3.9 cross times 10 squared straight N over straight m
  3. 3.9 cross times 10 to the power of negative 3 end exponent straight N over straight m
  4. 3.9 cross times 10 to the power of negative 1 end exponent straight N over straight m

The correct answer is: 3.9 cross times 10 squared straight N over straight m

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