Question

Question Objective : Conceptual

Difficulty Level : AIEEE_L2(NCERT Standard bits including numerical bits)
A cylindrical vessel of area of cross-section A is filled with water to a height H. It has a capillary tube of length l and radius r fitted horizontally at its bottom. If the coefficient of viscosity of water is η, then time required in which level of water will fall to a height H2 is (density of water is ρ)

A) ηIr244AρIn(2)
B) 4ηIr4πgAρIn(12)
C) 8ηIAρπgr4In(2)
D) 4HηIρπgr4In(2)

Answer 1

Answer:

(B) I hope this answer is correct.

Explanation:

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