Question

According to Stoke‘s law, the viscous drag force, on an oil drop is proportional to:

• A. $\sqrt{V}$
• B. $V^2$
• C. $V^{-1}$
• D. $V$

Answer 1

The correct option is D $V$

$F=6\pi \eta rv$
where $\eta$ = viscosity of liquid
$r=$ radius of oil drop
$v=$ velocity
$F=$ drag force