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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: JEE 07 question
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[Post New]2 Apr 2008 10:11:07 IST
    Subject: JEE 07 question
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rtiit (431)

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JEE 07 question

    
[Post New]2 Apr 2008 10:13:37 IST
    Subject: JEE 07 question
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rtiit (431)

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plz click on image to download
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[Post New]2 Apr 2008 10:19:48 IST
    Subject: Re:JEE 07 question
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computer001 (1814)

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b)
Nitwit Blubber Odment Tweak
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[Post New]2 Apr 2008 10:20:45 IST
    Subject: JEE 07 question
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rtiit (431)

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how?? xplain
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[Post New]2 Apr 2008 10:21:38 IST
    Subject: Re:JEE 07 question
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abhishekray07 (224)

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sorry i cant draw the diagram
i'll try to explain it
 
consider a strip of thickness dx at height x from the top
so area of this strip is dA=2R*dx
so force due to this section on ABCD, dF= (P0+gx)*2R*dx
 
now integrating this force from 0 to h to find the total force
F=[0 ][h ] (P0+gx)*2R*dx
  = 2P0Rh + Rgh2
now force due to surface tension would be 2RT and in the opposite diretion
 
so F=2P0Rh + Rgh2 - 2RT
 
 
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[Post New]2 Apr 2008 10:26:30 IST
    Subject: JEE 07 question
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rtiit (431)

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thnx
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[Post New]2 Apr 2008 16:14:50 IST
    Subject: Re:JEE 07 question
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sarath.x17 (0)

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i dint get y the surface tension is in the opposite direction...pls help
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