If 1 litre of water weighs 1 kg, then how many cubic millimetres of water will weigh 0.1 gm?
- A1
- B10
- C100Correct
- D1000
Explanation
Explanation:
- Given: 1 litre of water weighs 1 kg. This means the density of water is 1 kg/litre.
- Convert units to a consistent system (grams and cubic centimetres first): 1 kg = 1000 gm 1 litre = 1000 cm^3 So, the density of water = 1000 gm / 1000 cm^3 = 1 gm/cm^3.
- We need to find the volume of water that weighs 0.1 gm. Volume = Mass / Density Volume = 0.1 gm / (1 gm/cm^3) = 0.1 cm^3.
- Convert this volume from cubic centimetres to cubic millimetres: 1 cm = 10 mm 1 cm^3 = (10 mm)^3 = 1000 mm^3 Therefore, 0.1 cm^3 = 0.1 * 1000 mm^3 = 100 mm^3.
Thus, 100 cubic millimetres of water will weigh 0.1 gm.
The final answer is C) 100.
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