Physics Elasticity Question 36

Question: Which of the following relations is true

[CPMT 1984]

Options:

A) $ 3Y=K(1-\sigma ) $

B) $ K=\frac{9\eta Y}{Y+\eta } $

C) $ \sigma =(6K+\eta )Y $

D) $ \sigma =\frac{0.5Y-\eta }{\eta } $

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Answer:

Correct Answer: D

Solution:

$ Y=2\eta (1+\sigma )\Rightarrow \sigma =\frac{0.5Y-\eta }{\eta } $