The Young's modulus of steel is 2xx10^(1...

The Young's modulus of steel is `2xx10^(11)N//m^(2)`. If the interatomic spacing of the metal is 2.5 Å. Then the interatomic force constant is,

A

40 N/m

B

35 N/m

C

25 N/m

D

50 N/m

Text Solution

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The correct Answer is:

D

Interatomic force constant K = Y r
`= 2xx10^(11) xx 2.5 xx 10^(-10)=50N//m`

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