If an X-Ray Beam of Wavelength 1

question 51

Multiple Choice

If an X-ray beam of wavelength 1.4 × 10^-10 m makes an angle of 20° with a set of planes in a crystal causing first order constructive interference, at what angle will the second order line appear?

• A)40°
• B)20°
• C)43°
• D)4°
• E)11°

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