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The force F on a sphere of radius r movi...

The force F on a sphere of radius r moving in a medium with velocity v is given by `F = 6 pi eta rv`. The dimensions of `eta` are

A

`[ML^(-3)]`

B

`[MLT^(-2)]`

C

`[MT^(-1)]`

D

`[ML^(-1)T^(-1)]`

Text Solution

Verified by Experts

The correct Answer is:
D
`f=6n etarv`
`eta=(f)/(6pirv)=(MLT^(-2))/([L][LT^(-1)])=ML^(-1)T^(-1)`
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