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Water from a pipe is coming at a rate of...

Water from a pipe is coming at a rate of `100` litres per minute. If the radius of the pipe is `5cm`, the Reynolds number for the flow is of the order of : (density of water `=1000kg//m^(3)`, coefficient of viscosity of water `=1mPa s`)

A

`10^2`

B

`10^3`

C

`10^6`

D

`10^4`

Text Solution

Verified by Experts

The correct Answer is:
D
`R=(rhoVd)/(n),Q=100//min=0.1m^3//min`
`=(0.1)/(60)m^3//s`
`V=Q/A=(0.1)/60xx1/(pixx(0.05)^2)" "implies" "R=10^3xx(0.1)/(60xxpixx(0.05)^2)/(10^(-3))xx0.1=(10^4)/(60xxpixx25xx10^(-4))~~2xx10^4`
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