Consider a crystal for which the average glide dislocation separation is $10$ microns. The magnitude of the dislocation burgers vectors is $0\mathrm{.}1$ nm $.$ If all the dislocations have the same sign and are parallel to one another, determine the shear strain, if they all move an average distance of $100$ microns.

$0\mathrm{.}0001$

$0\mathrm{.}0010$

$0\mathrm{.}0100$

$0\mathrm{.}1000$