$4.[0/2$ 'oints$]$

SERCP$1122\mathrm{.}3.$P$\mathrm{.}017.$

H w many times will the incident beam shown in the figure below be reflected by each of the parallel mirrors? $($Assume $\backslash ($ x$=1\mathrm{.}13\backslash$mathrm$\{$~m$\}\backslash )$ and $\backslash ($ y$=1\mathrm{.}13\backslash$mathrm$\{$~m$\}\backslash ).)$ nirror on the right

Youraesponse differs from the correct answer by more than $\backslash (100\backslash \%\backslash ).$ times

nirror on the left

You response differs from the correct answer by more than $10\backslash \%.$ Double check your calculations. times