Velocity of a small particle of diameter ‘Dp’ at a distance ‘r� – McqOptions

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1.	Velocity of a small particle of diameter ‘Dp’ at a distance ‘r’ from the rotational axis of a cyclone rotating at an angular speed ‘ω’ is given by (the other symbols are as per standard notation) ?
A.	[(DP/18). (ρs – ρ/μ)] ω2r
B.	[(DP2/18). (ρs – ρ/μ)] ω2r
C.	[(DP/18). (ρs – ρ/μ)] ω2r2
D.	[(DP2/18). (ρs – ρ/μ)] ω2r
Answer» E.

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