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Q.

Two blocks A and B made of iron and aluminum respectively have exactly the same weight. They are completely immersed in water and weighed. If the densities of iron and aluminum are 8000 kg/m3 and 2700kg/m3, then

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a

ratio of apparent weights of A and B = 80/27

b

A and B will weigh the same as before 

c

A will weigh more than B

d

B will weigh more than A

answer is A.

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Detailed Solution

ρA>ρB⇒vA<vB,wa=w−ρVg⇒(wa)A>(wa)B

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