A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is$?

A metal having a Poisson's ratio = 0.3 is elastically deformed under u

1.	A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is$?
A.	-0.8
B.	0.8
C.	+0.08
D.	-0.24
Answer» E.