A block of wood floats in freshwater with two-third of its volume submerged. In oil, the block floats with one-fourth of its volume submerged. The density of oil is

Question

A block of wood floats in freshwater with two-third of its volume submerged. In oil, the block floats with one-fourth of its volume submerged. The density of oil is, 2666.7 k g m - 3, 5333.3 k g m - 3, 1333.3 k g m - 3, 3333.3 k g m - 3

MARKS App · Accepted Answer

ρ w 2 3 V = ρ b V ρ o i l 1 4 V = ρ b V ∴ 2 3 ρ w = 1 4 ρ o i l ρ o i l = 8 3 ρ w = 8000 3 = 2666.7

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