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water rises to a height H in a capillary tube lowered vertically into water to a depth L as shown in figure.The lower end of the tube is now closed,the tube is then taken out of the water and opened again.The length of the water column remaining in the tube will be:

water rises to a height  H in a capillary tube lowered vertically into water to a depth L as shown in figure.The lower end of the tube is now closed,the tube is then taken out of the water and opened again.The length of the water column remaining in the tube will be:

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Grade:11

3 Answers

avinash
31 Points
6 years ago
the answer will be H only . the water remaining in the tube will be H only ......
avinash
31 Points
6 years ago
THIS is due to the capilarity of the tube so the answer will be H only sure plz ignore the above message beacuse I dint give the reason for my answer 
HEMPUSHP KATARA
15 Points
5 years ago
The force of surface tension supports the weight of column h of water.
When the tube is taken out of the water and opened, a convex meniscus is formed at the lower end. The force of surface tension around this menisucs balances another column h of water.
Hence the total length of the water column remaining in the water tube s h+h = 2h.
 

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