A cubical block of wood `10cm` on a side floats at the interface between oil and water, as in fig. with its lower face `2 cm` below the interface. The intensity of the oli is `0.6 g cm^(-3)`. The mass of the block is `1 kg`

Options

A. 340g
B. 680g
C. 80g
D. 10g

Answer

B

Explanation

`mg = [100xx2xx1+100xx8xx0.6]g`
`:. M = (200+480)g = 680 g`