A) \[\frac{\text{F}}{2\text{A}\alpha \Delta \text{T}}\]
B) \[\frac{\text{F}}{\text{A}\alpha \,(\Delta \text{T}-273)}\]
C) \[\frac{\text{F}}{\text{A}\alpha \Delta \text{T}}\]
D) \[\frac{2\text{F}}{\text{A}\alpha \Delta \text{T}}\]
Correct Answer: C
Solution :
Young s modulus, \[\text{y}\,\text{=}\,\frac{\text{stress}}{\text{strain}}\,=\,\frac{\text{f}/\text{A}}{(\Delta \ell /\ell )}\] Thermal strain, \[\frac{\Delta l}{l}\,=\alpha \Delta T\,=\,\frac{F}{A(\alpha \Delta T)}.\]You need to login to perform this action.
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