Physics Elasticity Question 63
Question: On stretching a wire, the elastic energy stored per unit volume is
[MP PMT/PET 1988]
Options:
A) $ Fl/2AL $
B) $ FA/2L $
C) $ FL/2A $
D) $ FL/2 $
Show Answer
Answer:
Correct Answer: A
Solution:
Energy stored per unit volume = $ \frac{1}{2}\left( \frac{F}{A} \right)\ \left( \frac{l}{L} \right) $ = $ \frac{Fl}{2AL} $
BETA
