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!!! #4.21 (x-rays and Bragg Diffraction) A student is told to analyze a crystal using Bragg diffraction. Shefinds that the ancient equipment has seized up and cannot turn toglancing angles below =30degree. Shebravely persists and , using X-rays with=0.0438nm, find three weak maxima at=36.7degree, 52.8degree, and 84.5 degree. What are theorders of these maxima,and what is the spacing of the crystalplanes? 2d sin = Answer is n=3,4, and 5; d=0.11nm #4.21 (x-rays and Bragg Diffraction) A student is told to analyze a crystal using Bragg diffraction. Shefinds that the ancient equipment has seized up and cannot turn toglancing angles below =30degree. Shebravely persists and , using X-rays with=0.0438nm, find three weak maxima at=36.7degree, 52.8degree, and 84.5 degree. What are theorders of these maxima,and what is the spacing of the crystalplanes? 2d sin = Answer is n=3,4, and 5; d=0.11nm

Explanation / Answer

2 d sin = n    where n are the higherorders of maxima sin 36.7 = .60 = 3/5 sin 52.8 = .80 = 4/5 sin 84.5 = 1 = 5/5 n2 / n1 = sin 2 / sin1 = (4/5) / (3/5) = 4/3 So n = 3, 4, 5 will fit the Bragg's equation d = n / (2 sin ) = 3 / (2 * 3/5) = 5 / 2 = .0438 * 5 / 2 = .11 nm

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