MCQ
A rod is placed on a smooth horizontal surface. The stress developed when temperature is increased by $40\,^oC$
$[\alpha = 5\, \times\, 10^{-5}\,^oC^{-1},\,\, \gamma = 5\, \times\, 10^{11}\,\, N/m^2]$
- A$10^9\,\,N/m^2$
- B$2\,\,\times\,\,10^9\,\,N/m^2$
- C$10^{11}\,\,N/m^2$
- ✓Zero
