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°
Correct Answer:
Verified
Correct Answer:
Verified
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