Part1) What is the spacing, (to, between adjacent atoms? Rotated 45 anticlockwise Figure 1' The crystal is rotated and the spacing between the layers is now d. The crystal sample is now rotated 45 anticlockwise in the apparatus This presents a new set of crystal planes to the X-rays. What is the spacing, d, between these planes now? d=:m Part3) What is the smallest angle for which constructive interference will be observed now? as: o 0'15\"\" 4 Question: Not complete Marked out at l 00 t" Flag questloh i'} ooo Figure 1. Incident light makes an angle E) with a crystal surface. The crystal layers are a distance 00 apart. A sample crystal consists of identical atoms separated by a distance can . As Xrays with a wavelength /\\ = 0.0876 nm are reected from the crystal it is noted that the smallest Htor whlch a maximum intensity is observed ls 9 = 13.18 . This is for the case shown in the figure 6' is measured from the crystal plane, not from the normal to the surface