if M is the mass of water that rises in capillary tube of radius r,then mass of water which will rise in a capillary tube of radius 2r is ___
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if M is the mass of water that rises in capillary tube of radius r,then mass of water which will rise in a capillary tube of radius 2r is ___
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Answer
Correct option is
C
2M
Height of liquid rise in capillary tube h=
ρrg
2Tcosθ
C
⇒h∝
r
1
when radius becomes double height become half
∴h
′
=
2
h
Now , M=πr
2
h×ρ
M
′
=π(2r)
2
(h/2)×ρ=2M
Answer:
Height of liquid rise in capillary tube h=ρrg2TcosθC⇒h∝r1
when radius becomes double height become half
∴h′=2h
Now , M=πr2h×ρ
M′=π(2r)2(h/2)×ρ=2M