JEE Main 2008 Physics question

PhysicsNucleiJEE Main 2008

This question contains Statement −1 and Statement-2. Of the four choices given after the statements, choose the one that best describes the two statements. Statement - I: Energy is released when heavy nuclei undergo fission or light nuclei undergo fusion. Statement - II: For heavy nuclei, binding energy per nucleon increases with increasing Z while for light nuclei it decrease with increasing Z.

Answer: (4)

Solution

Statement 1 is true: both fission of heavy nuclei and fusion of light nuclei move towards the peak of the binding-energy-per-nucleon curve, releasing energy.

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Question ID VK-039036