A rectangular wooden block just floats in sea water (density 1030kgm−3) with one-fifth of its volume above the surface. What will happen when the same block is placed in kerosene of density 800kgm−3?
a) It will sink and rest at the bottom.
b) It will float with its top face just touching the surface (fully submerged).
c) It will float with four-fifths of its volume submerged.
d) It will float with 97% of its volume submerged.