Physics
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Question

A bubble of air 2 mm in diameter rises in a liquid of viscosity 0.075 SI units and density ,1350 kgm to the power of negative 3 end exponent . The terminal velocity of the bubble is about..........,m/s

  1. 4 cross times 10 to the power of negative 2 end exponent
  2. 5cross times 10 to the power of negative 2 end exponent
  3. 2cross times 10 to the power of negative 2 end exponent
  4. 3cross times 10 to the power of negative 2 end exponent

The correct answer is: 4 cross times 10 to the power of negative 2 end exponent

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