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In CGS system of units, the density of a material is 4   g   cm - 3 . What will be the value of the density of the material in a system of units in which unit of length is 10 ​   cm and unit of mass is 100 g ?

Options

  1. A0 .04
  2. B0 .4
  3. C40
  4. D400

Correct answer

C. 40

Step-by-step solution

As n 1 u 1 = n 2 u 2 4   g   cm - 3 = n 2 100 g 10 cm 3 ⇒ n 2 = 40

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