A solid has a shear modulus G$=30$GPa and Poisson's ratio of $0\mathrm{.}30.$ Consider $2$

vec$($b$)\_($A$)=$vec$($b$)\_($B$)=$b$\_($x$)$hat$($i$)$

hat$(\backslash$xi $)\_($A$)=$hat$(\backslash$xi $)\_($B$)=$hat$($k$)$

parallel edge dislocations, A and B $($tangent and Burger's vectors of the dislocations are

equal in magnitude and direction$)$ lying on the same slip plane in this solid a distance

apart, r$=100$nm$($N$)/($m$)(($N$)/($m$))$ : direction.