Q.

For nuclei having A>120, select the correct statement(s)

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a

The binding energy per nucleon decreases as Aincreases

b

If two nuclei fuse to form a bigger nucleus energy is released

c

The binding energy of nucleus decreases as A increases

d

If the nucleus breaks into two roughly equal parts energy is released.

answer is B, C.

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Detailed Solution

Maximum average binding energy per nucleon gradually increases upto 8.79 Mev for nickel and then gradually decreases .

In fusion process , only light nuclei can combine to form a heavier nucleus and energy is released.

In fission process , a heavy nucleus disintegrates into two or more lighter stable nuclei , as a result total binding energy is increased and energy is released.

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