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A solid weight 6kg in air. If its density is 2000kgm^-3, what will be its apparent weight in water?

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A solid weight 6kg in air. If its density is 2000kgm^-3, what will be its apparent weight in water?

(a) 6kg

(b) 2kg

(c) 3kg

(d) 5kg

This question was posed to me in an online interview.

Enquiry is from Buoyancy topic in chapter Mechanical Properties of Solids of Engineering Physics I

1 Answer

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The correct option is (c) 3kg

For explanation: Volume of solid=mass/density=6/2000 m^3=Volume of water displaced

Mass of water displaced=Volume×Density=6/2000×1000=3kg

Apparent weight in water = 6-3 = 3kg.

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