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Question

The density of ice is $$917\ kgm^{-3}$$. What fraction of the volume of a piece of ice will be above water, when floating in fresh water?


A
0.06
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B
0.083
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C
0.038
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D
0.068
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Solution

The correct option is B 0.083

Acc. to Archemedes principal

$$\rho_{1} v g=P_{2} v_{i} g$$

$$\dfrac{v_{i}}{v}=\dfrac{f_{1}}{\rho_{2}}=\dfrac{917}{1000}=0.917$$

Fraction outside water $$=0.083$$

Answer $$(B) \quad 0.083$$


Physics

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