A wooden block float in water with 1/3 of its volume submerged.(a) calculate the density of wood. (b) when the same block is placed on oil one quarter of its volume is immersed in oil. calculate density of oil.
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Explanation:
Let D be the density of wood
Density of wood / density of water = Part of block submerged / Total part
D / 1. = 2V/3/1V
D / 1 = 2/3
D = 2/3
= 0.67g/ cm^3
again,3V/4/1V = 0.67/D
3/4=0.67/D
D= 0.87g/cm^3
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