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When a capillary tube is connected to a ...

When a capillary tube is connected to a pressure head quantity of water flows per second is `V` (in c.c.) if another tube of same length but half the radius is connected to the first in series to the same pressure head, the quantity of water flowing through them per sencond will be (in c.c)

A

`(V)/(16)`

B

`(V)/(17)`

C

`(17V)/(16)`

D

V

Text Solution

Verified by Experts

The correct Answer is:
B
`Q=(pipr^(4))/(8etal), R_(s)=R_(1)+R_(2)`
`R_(s)=(8etal)/(pir^(4))+(8etal)/(pi((r )/(2))^(4))=17R`
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Knowledge Check

  • 16cm^(3) of water flows per second through a capillary tube of radius a cm and of length l cm when connected to a pressure head of h cm of water if a tube of the same length and radius a/2 cm is connected to the same pressure head the quantity of water flowing through the tube per second will be-

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