CBSE Class 11-science Answered
In case of Bulk's modulus(K),volumetric strain,i.e.,(deltaV/V)is taken as negetive as the volume of the body decreases.So,in case of Young's modulus(Y),when the length of the string decreases, why is the longitudinal strain,i.e.,(l/L) not taken as negetive?
Asked by SOURAV BHATTACHARYYA | 25 Oct, 2013, 09:39: PM
Expert Answer
Longitudinal strain (l/L) is taken positive for elongation and negative for compression of length.
However, in case of a string, the deforming force generally elongates the string; hence longitudinal strain comes out to be positive.
Answered by | 30 Oct, 2013, 03:46: PM
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