Question

A wooden cylinder floats vertically in water with half of its length immersed. The density of wood is

• A. Equal of that of water
• B. Half the density of water
• C. Double the density of water
• D. The question is incomplete

Answer 1

Answer: (B)

Half the density of water

Answer 2

$V \rho g = \frac { V } { 2 } \sigma g$∴ $\rho = \frac { \sigma } { 2 }$ (σ = density of water)