A cry

stal was analyzed with x$-$rays having $2\mathrm{.}54$ wavelength. The angle of first$-$order diffraction $($n $=1)$ was $18\mathrm{.}6.$ What would be the angle fA crystal was analyzed with x$-$rays having $2\mathrm{.}54$ wavelength. The angle of first$-$order diffraction $($n $=1)$ was $18\mathrm{.}6.$ What would be the angle foA crystal was analyzed with x$-$rays having $2\mathrm{.}54$ wavelength. The angle of first$-$order diffraction $($n $=1)$ was $18\mathrm{.}6.$ What would be the angle for second$-$order diffraction $($n $=2)?$r second$-$order diffraction $($n $=2)?$or second$-$order diffraction $($n $=2)?$