Question

A cubical block of wood 10 cm on a side, floats at the interface of oil and water as shown in figure. The density of oil is 0.6 g $$cm^{-3}$$ and density of water is 1 g $$cm^{-3}$$. The mass of the block is

A
706 g
B
607 g
C
760 g
D
670 g

Solution

The correct option is C 760 gWeight of block = Weight of oil displaced + weight of water displaced$$mg = 600 (6) g + 400(1) g = 760 g$$$$m = 760 g$$Physics

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