Physics Elasticity Question 59
Question: The Young’s modulus of a wire is Y.If the energy per unit volume is E, then the strain will be
Options:
A) $ \sqrt{\frac{2E}{Y}} $
B) $ \sqrt{2EY} $
C) EY
D) $ \frac{E}{Y} $
Show Answer
Answer:
Correct Answer: A
Solution:
Energy per unit volume $ =\frac{1}{2}\times r\times {{(\text{strain)}}^{r}} $
$ \
Therefore r=\sqrt{\frac{rE}{Y}} $
BETA
