solid ball made of material having coefficient of volume expansion 8×10-6/C o is immersed in a Liquid having coefficient of volume expansion 3×10-6/C o. The percentage change in upthrust when temperature is increased by 100°C is :

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Detailed Solution

Upthrust Th=ρLVsg =ρLo(1-γL∆T)VSo(1+γS∆T)g =ρLoVSo[1+(γS-γL)∆T]g %change =[(γS-γL)∆T]100=0.05%.