Doubt from fluids

A,b,c is the ans

@Kamalesh_V @chetan_pandey @Vatsalya @Seshank

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@manan_uppadhyay try this. Not getting.

Tried using bernoulli and continuity equations, not getting it.


Can you try poiseuille’s law?
I am making some error. You might get it.

Convert it to current electricity problem,
Find the resistances in terms of l and r givrn, and then use KVL.

Can you write it


This is the concept behind this question…
Try using it…

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@LaveshGupta @fogx_gofx @Abhinav.08 @Gaurav_Singh @mihir
@AshWin @Navjeet_Kohli @Sanskar

Guys I thing there is error becoz given answer is (2,4) but i did it (1,4) but when i trasspassed it in google then the figure is wrong. and also it is question of DRILL ADV ALLEN So, are these type of errors rare or often

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Option 1 is wrong becoz point B is in the liquid…and pressure will be less than P⁰ . (concept of excess presaure)

Ok Bro agreed. But Radius of meniscus must be 2S/rho g h


Bro Do U Know this Concept. I don’t know it.

ans is bd . how to get b

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Area x velocity = const.

Area decreases, velocity increases…then bernoulli (in first case)



help here

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11th Ka (A,D)?
12th Ka ( C )?


I will regret answering now cause I doubt my own approach

Can u prove how?