Physics Elasticity Question 129
Question: Density of rubber is d. A thick rubber cord of length L and cross-section area A undergoes elongation under its own weight on suspending it. This elongation is proportional to
Options:
A) dL
B) Ad/L
C) $ Ad/L^{2} $
D) $ dL^{2} $
Show Answer
Answer:
Correct Answer: D
Solution:
Increment in length $ l=\frac{L^{2}dg}{2Y} $ \ $ l\propto L^{2}d $
BETA
