A Crystal Diffracts X-Rays (£ = 154 Pm) at an Angle

question 66

Multiple Choice

A crystal diffracts x-rays (£ = 154 pm) at an angle of 9.8 ° . What is the spacing between the layers of atoms that produced this diffraction?
(Assume the order of diffraction is one.)

• A) 13 pm
• B) 76 pm
• C) 78 pm
• D) 452 pm
• E) none of these

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