Physics And Measurement Question 122
Question: The dimensions of inter atomic force constant are
[UPSEAT 1999]
Options:
A) $ M{{T}^{-2}} $
B) $ ML{{T}^{-1}} $
C) $ ML{{T}^{-2}} $
D) $ M{{L}^{-1}}{{T}^{-1}} $
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Answer:
Correct Answer: A
Solution:
$ K=Y\times r _{0} $ = $ [M{{L}^{-1}}{{T}^{-2}}]\times [L] $ = $ [M{{T}^{-2}}] $
$ Y $ = Young’s modulus and $ r _{0} $ = Interatomic distance
