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If Young's modulus of iron is 2xx10''" N...

If Young's modulus of iron is `2xx10''" N/m"^(2)` and the interatomic spacing between two molecules is `3xx10^(-10)` m the interatomic force constant is

A

60 N/m

B

120 N/m

C

30 N/m

D

180 N/m

Text Solution

Verified by Experts

The correct Answer is:
A
Onteratomic force constant
`K=Yxxr_(0)`
`=2xx10^(11)xx3xx10^(-10)`
`K=60" N/m"`
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