A wooden sphere of radius `1.0 cm` sinks in water. On coating it with a layer of wax of
Channel: Doubtnut
Date: 2020-07-26

A wooden sphere of radius `1.0 cm` sinks in water. On coating it with a layer of wax of uniform thickness `3 mm`, it just floats. What is the density of wood ? Density of wax `= 0.8 g//cm^3`.