What would be the greatest length of a steel wire which when fixed at one end can hang freely without breaking ?
`(rho_("steel")=7.8xx10^(3)kg//m^(3)B.S._("steel")=7.8xx10^(8)N//m^(2))`
A. `2.02xx10^(2)m`
B. `1.02xx10^(4)m`
C. `3.02xx10^(3)m`
D. `4.02xx10^(5)m`

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1 Answers

Correct Answer - B
B stress `=Lrho g`

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