A layer of oil with density 724 kg m -3 floats on water of density 1000 kg m -3 . A block floats on the oil-water interface with 1/6 of its volume in oil and 5/6 of its volume in water, as shown in the figure. What is the density of the block?
Text Solution
Verified by ExpertsThe correct answer is:
D
Given,
Density of oil 
= 724 kg/m 3
Density of water 
= 1000 kg/m 3
According to Archimedes' principle,
Up thrust = Weight of the liquid displaced
(V 0 and V w are volumes of oil and water displaced respectively)
, where 
=density of block.
and, 
and 
= 954 kg/m 3
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