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Viscosity of ethanol is 12.0 millipoise....

Viscosity of ethanol is 12.0 millipoise. Viscosity of ethanol in S.I system is equal to

A

`1.2`

B

`1.2 xx 10^(-3)`

C

`1.2 xx 10^(-2)`

D

`1.2 xx 10^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
12 m poise = `12 xx 10^(-3) ` poise.
1 poise = CGS unit = `(1 gm)/(Cm - S) = (10^(-3)kg)/(10^(-2) m - s)`
`= 0.1 SI units = 12 xx 10^(-3) ` poise
` = 12 xx 10^(-3) xx 0.1 kg//m-s = 1.2 xx 10^(-3)`.
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