A 10 cm cube floats in water with a height of 4 cm remaining above the surface. The density of the material from which the cube is made is, ..........

Options

A. `0.6 g cm ^(-3)`
B. `1. 0 g xm ^(-3)`
C. `0. 4 g cm ^(-3)`
D. `0.24 g m ^(-3)`

Answer

A

Explanation

`("Volume of cube submerged")/("Total volume")=("density of cube material")/("density of water")`
`implies (10-4)/( 10) = (d)/(1)`
`therefore d = (6)/(10) = 0.6 g cm ^(-3)`