A Beam of X-Rays of Different Frequencies Is Reflected at 10

question 10

Multiple Choice

A beam of X-rays of different frequencies is reflected at 10 degrees off a crystal of interatomic spacing 0.2 nm. Which X-ray wavelength is preferentially reflected?

• A)0.0943 nm
• B)0.139 nm
• C)0.0695 nm
• D)1.02 × 10−10 m
• E)3.47 × 10−11 m

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