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AP EAMCET202421 May 2024Evening ShiftPhysicsNuclear PhysicsActual

The surface areas of two nuclei are in the ratio 9: 25 . The mass numbers of the nuclei are in the ratio

Options

  1. A27: 125
  2. B9: 25
  3. C3: 5
  4. D1: 1

Correct answer

A. 27: 125

Step-by-step solution

For two nuclei, A₁ A₂ = 9 25 R₁^2 R₂^2 = 9 25 R₁ R₂ = 3 5 Ratio of radii, R₁ R₂ = ( A₁ A₂ )^ 1 3 A₁ A₂ = ( R₁ R₂ )^3= ( 3 5 )^3= 27 125

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