$A$ rod is placed on a smooth horizontal surface. What is the stress developed when the temperature is increased by $40\,^{\circ}C$?
$[\alpha = 5\, \times\, 10^{-5}\,^{\circ}C^{-1},\, Y = 5\, \times\, 10^{11}\, N/m^2]$

  • A
    $10^9\, N/m^2$
  • B
    $2\, \times\, 10^9\, N/m^2$
  • C
    $10^{11}\, N/m^2$
  • D
    Zero

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Similar Questions

$A$ wire of diameter $1\, mm$ breaks under a tension of $1000\, N.$ Another wire,of the same material as that of the first one,but of diameter $2\, mm$ breaks under a tension of ...... $N$.

Hooke's law defines:

$A$ wire can be broken by applying a load of $20 \, kg$ weight. The force required to break the wire of twice the diameter is .......... $kg \, wt$.

The breaking stress of a wire of length $L$ and radius $r$ is $5 \ kg-wt/m^2$. The wire of length $2L$ and radius $2r$ of the same material will have a breaking stress in $kg-wt/m^2$ of:

Dimensions of strain are

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