A solid uniform ball of volume V floats on the interface of two immiscible liquids. The specific gravity of the upper liquid is ρ U and of the lower one ρ λ whilst the specific gravity of the ball is ρ b = ρ λ The fraction of the volume of the ball will be in the lower liquid is n. What is value of n?
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(0001)
Sol. (V u + V λ ) ρ b = V u ρ u + V λ ρ λ ..........(1)
V = V u + V λ ...........(2)
from (1) and (2)
V l = V 
V 2 = V 
If ρ b = ρ λ then
V 1 = 0, V 2 = V
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