Gravitation Question 216
Question: A rubber of volume 2000 cc is alternately subjected to tension and released. The The stress-strain curve of rubber. Each curve is a quadrant of an ellipse. The. amount of energy lost as heat per cycle per unit volume will be
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: D
Solution:
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Hystersis loss corresponding to elasticity per unit volume of a substance is given by the area of hysteresis loop, i.e., stress-strain curve corresponding to one complete loading and deloading. Area of an ellipse =
Also,
