NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

1 Medium

1 of 1

Understanding +4 | -1

The general form of potential energy curve for atoms or molecules can be represented by the following equation

U\left( R \right) = \frac{A}{{{R^n}}} - \frac{B}{{{R^m}}}

. Here, R is the interatomic or molecular distance, A and B are coefficients,

n

and

m

are the exponents. In the above equation

View answer and explanation

Correct option: B

Second term represents the attractive part of the potential

Option B (Second term represents the attractive part of the potential) is correct because the negative sign in front of the second term indicates an attractive force as the distance R increases.

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