Properties Of Solids And Liquids Question 268

Question: A silver ingot weighing 2.1 kg is held by a string so as to be completely immersed in a liquid of relative density 0.8. The relative density of silver is 10.5. The tension in the string in kg-wt is

Options:

A)1.6

B)1.94

C)3.1

D)5.25

Show Answer

Answer:

Correct Answer: B

Solution:

Apparent weight $ =V(\rho -\sigma )g=\frac{M}{\rho }(\rho -\sigma )g $

$ =M\left( 1-\frac{\sigma }{\rho } \right)g $

$ =2.1\left( 1-\frac{0.8}{10.5} \right)g=1.94g $ N= 1.94 Kg-wt



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