sign up I login
 advanced
refer a friend - earn nickels!!

Ask & Discuss Questions with Community & Experts

Moderation Team
 90 chars left    advanced
Ask iit jee aieee pet cbse icse state board experts Expert Question: Surface tension
Forum Index -> Mechanics like the article? email it to a friend.  
Author Message
ramyani (2610)

Blazing goIITian

Olaaa!! Perrrfect answer. 440  [645 rates]

ramyani's Avatar

total posts: 2082    
offline Offline


Q. The lower end of a capillary of tube is immersed in Hg. The level of Hg in the tube is found to be 2 cm below the outer level. If the same tube is immersed in water, upto what height will the water rise in the capillary ?



it is not important where u stand, but in which direction u are moving
    
suddy (12)

Cool goIITian

Olaaa!! Perrrfect answer. 2  [3 rates]

suddy's Avatar

total posts: 31    
offline Offline

lesser than 2


suddy
 this reply: 0 points  (with Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
krishna.gopal (2399)

Forum Expert Blazing goIITian

Olaaa!! Perrrfect answer. 381  bad job dude!! I dont approve of this answer! 2  [632 rates]

krishna.gopal's Avatar

total posts: 2940    
offline Offline
h=2T/(dgrcos@)

where T is surface tension of liquid
d is density of liquid
r is radius of capillary and
@ is contact angle,
In this case only r is equall.
You can answer only if you know other quantities.

Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi
 this reply: 5 points  (with Olaaa!! Perrrfect answer.   in 1 votes )   [?]
 
You have to be logged on to rate
  
karthik2007 (3399)

Blazing goIITian

Olaaa!! Perrrfect answer. 597  [804 rates]

karthik2007's Avatar

total posts: 2629    
offline Offline
The formula for capillary rise is actually h = 2Scos@/rdg

Will nip in at times to solve problems :)
 this reply: 0 points  (with Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
 
Forum Index -> Mechanics
Go to:   

Top Offers for goIITians
Correspondence Courses
Brilliant Tutorials
Narayana Institute
Aakash Institute
Classroom/Crash Courses
Narayana - Kota , Delhi , Others
Brilliant Tutorials - Class , Crash
Aakash Institute - Medical , Engg
Online Test Series
Brilliant Tutorials
Narayana Institute
Aakash Institute
Mahesh Tutorials
AMITY      Sri Chaitanya