Potassium Iodide (chemical formula: KI) has a face-centred cubic structure (just like sodium chloride).If the distance between crystal planes is d = 0.353 nm and X-rays of wavelength $\lambda$= 0.093 4 nm are used, what is the smallest angle $\theta$ at which a diffraction maximum may be obtained?
A)9.92$\degree$
B)7.60$\degree$
C)13.3$\degree$
D)15.5$\degree$
E)6.52$\degree$

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The Answer of Potassium Iodide (chemical formula: KI) has a face-centred cubic structure (just like sodium chloride).If the distance between crystal planes is d = 0.353 nm and X-rays of wavelength $\lambda$= 0.093 4 nm are used, what is the smallest angle $\theta$ at which a diffraction maximum may be obtained?
A)9.92$\degree$
B)7.60$\degree$
C)13.3$\degree$
D)15.5$\degree$
E)6.52$\degree$

Potassium Iodide (Chemical Formula: KI) Has a Face-Centred Cubic Structure λ\lambdaλ

Potassium Iodide (Chemical Formula: KI) Has a Face-Centred Cubic Structure $\lambda$