SATHEE: Physics And Measurement Question 122

Physics And Measurement Question 122

Question: The dimensions of inter atomic force constant are

[UPSEAT 1999]

Options:

A) $M T^{- 2}$

B) $M L T^{- 1}$

C) $M L T^{- 2}$

D) $M L^{- 1} T^{- 1}$

Show Answer

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

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