Question

Choose the wrong statement

• A. In Laue method monochromatic X-ray beam is used
• B. In powder method monochromatic X-ray beam is used
• C. In rotating method monochromatic X-ray beam is used
• D. In Laue method white X-radiation is used

Hint:

The Laue method is primarily used for crystal orientation and defect analysis, whereas the powder method is widely used for phase identification in polycrystalline materials.

Answer 1

The Correct Option is A

The Laue method is a technique in X-ray crystallography that uses white X-rays, which are a continuous spectrum of wavelengths. In contrast, the powder method and rotating crystal method use monochromatic X-rays. Step 1: Understanding the Methods - Laue Method: Uses white X-rays to capture diffraction patterns for crystal orientation analysis. - Powder Method: Uses monochromatic X-rays for analyzing polycrystalline materials. - Rotating Crystal Method: Uses monochromatic X-rays to study single crystals by rotating them in a fixed X-ray beam.

Step 2: Identifying the Wrong Statement Option (A) is incorrect because the Laue method uses white X-rays, not monochromatic X-rays.