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

Options

A. equal to that of water
B. half the density of water
C. double the density of water
D. the quiestion is incomplete.

Answer

B

Explanation

As `f_(in)=(rho)/(sigma)`,`(1)/(2)=(rho)/(sigma)` or `rho=(sigma)/(2)`, Where `rho` is density wood and sigma is that of water.
Here, `f_m` is the fraction of the length or volume of the floating body inside the liquid. For details refer to