The dimensions of inter atomic force constant are 

(1) MT2

(2) MLT1

(3) MLT2

(4) ML1T1

Concept Videos :-

#1 | Basic Concepts & Examples
#2 | Dimensional Analysis : Remaining

Concept Questions :-

(1) K=Y×r0 = [ML1T2]×[L] = [MT2]

Y = Young's modulus and r0 = Interatomic distance

Difficulty Level:

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