Regarding elasticity which of the following statements are correct? a) the point where the elasticity ends and plasticity starts is called yield pointb) breaking stress depends on the area of cross sectionc) the value of poisions ratio can not be greater than 0.5d) air is more elastic than water
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a
a, b are correct
b
a, c are correct
c
b, d are correct
d
a and d are correct
answer is B.
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Detailed Solution
Poisson's ratio lies between -1 and 5Water is more elastic than the air because a higher modulus indicates that the material is harder to deform.
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Regarding elasticity which of the following statements are correct? a) the point where the elasticity ends and plasticity starts is called yield pointb) breaking stress depends on the area of cross sectionc) the value of poisions ratio can not be greater than 0.5d) air is more elastic than water