# Doubt from fluids

![IMG-20190523-WA0020|441x500]
A,b,c is the ans

1 Like

Tried using bernoulli and continuity equations, not getting it.

Same.

Can you try poiseuilleâs law?
I am making some error. You might get it.

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

Can you write it

Deleted

This is the concept behind this questionâŚ
Try using itâŚ

1 Like

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

1 Like

Option 1 is wrong becoz point B is in the liquidâŚand pressure will be less than Pâ° . (concept of excess presaure)

Ok Bro agreed. But Radius of meniscus must be 2S/rho g h
@Abhinav.08

Bro Do U Know this Concept. I donât know it.

@LaveshGupta
@Aastik_Guru
@Aswin24
@Rudra_d
ans is bd . how to get b

1 Like

Area x velocity = const.

Area decreases, velocity increasesâŚthen bernoulli (in first case)

3 Likes
1 Like

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

@Kshitijranaw

I will regret answering now cause I doubt my own approach

Can u prove how?