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A body weighs 50 gf in air and 30 gf when fully immersed in water. Find the upthrust, the volume of the body and its relative density.
Original Khojo Papers practice question — not from a past board paper.
Answer
Upthrust 20 gf, volume 20 cm3 and relative density 2.5
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The apparent loss of weight is the upthrust, 20 gf, which is the weight of the water displaced, so the volume is 20 cm3. The relative density is 50 ÷ 20 = 2.5.
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