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The potential energy U between two molec...


The potential energy `U` between two molecules as a function of the distance `X` between them has been shown in the figure. The two molecules are

A

attracted when x lies between A and B are repelled when X lies between B and C

B

attracted when x lies between B and C and are repelled when x lies between A and B

C

attracted when they reach B

D

repelled when hey reach B

Text Solution

Verified by Experts

The correct Answer is:
B
(b) Force `F=(-dU)/(dx)`
BC: slope is +ve , F is attractive
AB: slope is -ve , F is repulsive
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