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The first - order diffraction os X- rays...

The first `-` order diffraction os `X-` rays from a certain set of crystal planes occurs an angle of `11.8^(@)` from the planes. If the planes are `0.281 nm` apart, what is the wavelength of `X-` rays?

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To solve the problem, we will use Bragg's Law, which is given by the equation: \[ n\lambda = 2d \sin \theta \] Where: - \( n \) is the order of diffraction (for first order, \( n = 1 \)) - \( \lambda \) is the wavelength of the X-rays - \( d \) is the distance between the crystal planes ...
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