Question
If the interatomic spacing in a steel wire is 3.0Å and Yₛₜₑₑₗ = 20 x10¹⁰ N / m² , then force constant is
Options :
6 x 10⁻² N / Å
6 x 10⁻⁹ N /Å
4 x 10⁻⁵ N /Å
6 x 10⁻⁵ N /Å
Answer :
6 x 10⁻⁹ N /Å
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