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Draw the graph showing variation of potential energy of a pair of nucleons as a function of their separation. Indicate the region in which nuclear force is (a) attractive (b) repulsive. |
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Answer» Solution :The variation of potential ENERGY of a PAIR of nucleus as a function of their separation (r) is shown in FIG. We find that corresponding to r=OC=0.8fm, P.E. is minimum. At this DISTANCE, force between nucleons=0. for distance `gt OC`, negative P.E. goes on decreasing. The nuclear force are attractive. for distance `lt OC`, negative P.E. decreases, becomes zero and then increases. The nuclear forces in this region are REPULSIVE. 
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