Properties Of Solids And Liquids Question 257

Question: A metallic block weighs 15 N in air. It weighs 12 N when immersed in water and 13 N when immersed in another liquid. What is the specific gravity of the liquid?

Options:

A) 1/3

B) 2/3

C) 12/13

D) 13/15

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Answer:

Correct Answer: B

Solution:

[b] $ \frac{\sigma }{{\rho _{W}}}=\frac{15}{15-12},\frac{\sigma }{{\rho _{l}}}=\frac{15}{15-13} $

$ \Rightarrow \frac{{\rho _{l}}}{{\rho _{W}}}=\frac{2}{3} $



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