Queition $4$; $(20$ pts$)$

The d$-$spacing for an unknuan cubic material were determintd using a cu x$-$ray source and are as follans:

$3\mathrm{.}5793,25310,2\mathrm{.}0665,1\mathrm{.}7896,1\mathrm{.}6007,1\mathrm{.}4612,1\mathrm{.}3578,1\mathrm{.}2655A$

A$)$ What is the crystal structure of this materlal and what is ies lattice parameter? Show how you arrved at this conclusian. A spreadsheet similar to the notes would be suficient.

B$)$ If i tald you that these $d-$spacings were determined with an fe source utilizing a diffractameter wath an upper $2-$theta limit of $140$ derrees, would you beliewe me or would you call me a liar? Why ar why not?