Please help me with my homework! I will give proper respect as soon as possible.

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Please help me with my homework!
I will give proper respect as soon as possible. PLEEEASE helpme!!! #4.19 (x-rays and Bragg Diffraction) Potassium chloride (KCI) has a set of crystal planes separated by adistance d=0.31 nm. At what glancing angle to these planeswould the first-order Bragg maximum occur for X-rays of wavelength0.05nm? Answer is =4.6degree #4.19 (x-rays and Bragg Diffraction) Potassium chloride (KCI) has a set of crystal planes separated by adistance d=0.31 nm. At what glancing angle to these planeswould the first-order Bragg maximum occur for X-rays of wavelength0.05nm? Answer is =4.6degree

Explanation / Answer

distance   d = 0.31 nm wavelength = 0.05 nm Bragg's equation 2d sin =     for1 st order                              sin = 0.05 / 2 *0.31                                      = 0.1612 / 2                                   = 4.6 degrees

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