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NEET2022PhysicsNuclear PhysicsActual

A nucleus of mass number 189 splits into two nuclei having mass number 125 and 64 . The ratio of radius of two daughter nuclei respectively is:

Options

  1. A4 : 5
  2. B5 : 4
  3. C25 : 16
  4. D1 : 1

Correct answer

B. 5 : 4

Step-by-step solution

The relation between radius R of nuclei and mass number A is given by, R = R 0 A 1 3 , where R 0 is fermi constant. Thus, R 1 R 2 = A 1 A 2 1 3 = 125 64 1 3 = 5 4 .

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