The density of a substance is $0.5 g c m^{- 3}$ . The substance _______.

(A) sinks in water
(B) floats in water
(C) remains at original position
(D) oscillates [1 Mark]

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Solution

We know, density of water is $1 g c m^{- 3}$ .
Given, density of the substance is $0.5 g c m^{- 3}$ .
Since density of substance is less than density of water, the substance will float in water.

Hence option (B) is correct.
[1 Mark]

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