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  4. Edge length of a cube is 400 pm, its body diagonal would be

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Q. Edge length of a cube is 400 pm, its body diagonal would be

CMC MedicalCMC Medical 2009

Solution:

Length of body diagonal $ =a\sqrt{3} $ where a = edge length $ =400\sqrt{3} $ $ =692.82\,pm $ $ \approx ~693\text{ }pm $