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If the radii of nuclei of 13 A l 27 and 30 Z n 64 are R 1 and R 2 respectively, then R 1 R 2 =

Options

  1. A64 27
  2. B3 4
  3. C27 64
  4. D4 3

Correct answer

B. 3 4

Step-by-step solution

Given R 1 and R 2 are the radii of atomic nuclei of mass number 27 and 64 respectively, then the ratio R 1 R 2 = A 1 A 2 1 3 = 27 64 = 3 4

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