A tank contains water on top of mercury as shown in figure. A cubical block of side 10cm is in equilibrium inside the tank. The depth of the block inside mercury is (RD of the material of block = 8.85, RD of mercury = 13.6)
6cm
5cm
7cm
8cm
Weight = upthrust from mercury + upthrust from water
Here, x = depth inside mercury
x=6cm
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