In an X-Ray Diffraction Experiment, X-Rays of Fixed Wavelength Yield

question 2

Multiple Choice

In an x-ray diffraction experiment, x-rays of fixed wavelength yield a first-order maximum at an incident angle of 12° relative to the surface. At what angle would one expect to find the corresponding third-order maximum?

• A) 4.0°
• B) 12°
• C) 36°
• D) 39°
• E) more information is needed