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Two different liquids are flowing in two...

Two different liquids are flowing in two tubes of equal radius. The ratio of coefficients of viscosity of liquids is 52:49 and the ratio of their densities is 13:1, then the ratio of their critical velocities will be

A

`4:49`

B

`49:4`

C

`2:7`

D

`7:2`

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The correct Answer is:
A
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