Monochromatic x rays are incident on a crystal for which the spacing of the atomic planes is 0.440 nm . the first-order maximum in the bragg reflection occurs when the incident and reflected x rays make an angle of 39.4 â with the crystal planes. what is the wavelength of the x rays?

Wavelength of the x rays is

Explanation:

It is given that,

The inter planer spacing between the crystal planes,

The first-order maximum in the Bragg reflection occurs when the incident and reflected x rays make an angle of 39.4 degrees with the crystal planes. According to the Bragg's condition, the first-order maximum is given by :

n = 1

So, the wavelength of the x rays is . Hence, this is the required solution.

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