1.

A steel rod of length 1 m rests on a smooth horizontal base. If it is heated from 0^(@) C " to " 100^(@) C, what is the longitudinal stress developed ? (y = 9 xx 10^(9) N//m , alpha = 10 xx 10^(-6) ""^(@) C^(-1))

Answer»

ZERO
0.0012
9 Pa
`9 XX 10^(-4)` Pa

Answer :A


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