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A nuclear reaction must be balanced in terms of
Correct Answer Is : Mass and energy A watch spring when wound up acquires Correct Answer Is : Potential energy When water freezes its density Correct Answer Is : Decreases Which one of the following is a non-dimensional quantity ? Correct Answer Is : Strain The density of water is greater than the density of kerosene. If the two are mixed Correct Answer Is : Kerosene floats on water