Two liquids of densities $d_1$ and $d_2$ are flowing in identical capillary tubes uder the same pressure difference. Ift $t_1$ and $t_2$ are time taken for the flow of equal quantities (mass) of liquids, then the ratio of coefficient of viscosity of liquids must be
  • A$\frac{d_1 t_1}{d_2 t_2}$
  • B$\frac{t_1}{t_2}$
  • C$\frac{ d _2}{ d _1} \frac{ t _2}{ t _1}$
  • D$\sqrt{\frac{d_1 t_1}{d_2 t_2}}$
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