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Q1. An SI unit of time is

Year
Month
Minute
Second

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Q2. An object has a mass of 48 g and a volume of 6 cm^3. Density of this of object is

6 g/cm^3
8 g/cm^3
42 g/cm^3
36 g/cm^3

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Q3. The density of a stone is 5 g.cm^3 and its mass is 17 g. Calculate its volume (cm^3) by typing in the blank.