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A lead sphere of 1.0 mm diameter and rel...

A lead sphere of `1.0 mm` diameter and relative density `11.20` attains a terminal velocity of `0.7 cm s^(-1)` in a liquid of relative density `1.26`.
What is the value of the Reynolds number?

A

`0.01`

B

`0.03`

C

`0.15`

D

`0.26`

Text Solution

Verified by Experts

The correct Answer is:
A
Renolds number `Re =rhovd/(eta)`
`Re=((1.26x10^(3))(0.7x10^(-2))(1x10^(-3)))/0.77`
Re`=0.01lt0.20` (maximum limit of Stokes' law).
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