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A liquid having coefficient of viscosity 0.02 decapoise is fil

Question

A liquid having coefficient of viscosity 0.02 decapoise is filled in container of cross section area $20 m^{2}$ . if viscous drag between two adjacent layers in flowing is 1N , then the viscous gradient is:

2.0 s^{- 1}

2.5 s^{- 1}

3.0 s^{- 1}

3.5 s^{- 1}

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A liquid having coefficient of viscosity 0.02 decapoise is filled in container of cross section area

20 m^{2}

. if viscous drag between two adjacent layers in flowing is 1N , then the viscous gradient is:

15 mins ago

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Text solutionVerified

Given,

F = 1 N

η = 0.02 d ec a p o i se = 0.02 N / s m^{2}

A = 20 m^{2}

The drag force is given by

F = η A \frac{d v}{d x}

\frac{d v}{d x} = \frac{F}{η A} = \frac{1}{0.02 \times 20}

velocity gradient ,

\frac{d v}{d x} = 2.5 s^{- 1}

The correct option is B.

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Question Text	A liquid having coefficient of viscosity 0.02 decapoise is filled in container of cross section area $20 m^{2}$ . if viscous drag between two adjacent layers in flowing is 1N , then the viscous gradient is:
Answer Type	Text solution:1
Upvotes	150