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The interatomic distance for a metal is ...

The interatomic distance for a metal is `3 xx 10^(-10)` m. If the interatomic force constant is `3.6 xx 10^(-9) N//Å`. The the Young's modulus in `N//m^(2)` will be

A

`1.2xx10^(11)`

B

`4.2xx10^(11)`

C

`10.8 xx 10^(8)`

D

`2.4 xx 10^(10)`

Text Solution

Verified by Experts

The correct Answer is:
A
(a) Young's Modulus `Y=(3.6xx10^(-9)N//Å)/(3xx10^(-10)m)`
`=(3.6xx10^(-9))/(3xx10^(-10)xx10^(-10))=1.2xx 10^(11) Nm^(-2)`
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