Physics Elasticity Question 169
Question: Four identical rods are stretched by same force. Maximum extension is produced in
Options:
A) $ L=10cm,,,D=1,mm $
B) $ L=100,cm,,D=,2mm $
C)$ L=200,cm,,D=,3mm $
D) $ L=300,cm,,D=,4,mm $
Show Answer
Answer:
Correct Answer: B
Solution:
$ l=\frac{FL}{\pi r^{2}Y} $ \ $ l\propto \frac{L}{r^{2}} $ Ratio of $ \frac{L}{r^{2}} $ is maximum for wire in option .
BETA
