Question

What are the variables in the graph of powder diffraction pattern of a crystalline solid?

• A. \( x{-axis} = 2\theta; \, y{-axis} = {intensity} \)
• B. \( x{-axis} = \theta; \, y{-axis} = 2\theta \)
• C. \( x{-axis} = \theta; \, y{-axis} = {intensity} \)
• D. \( x{-axis} = {intensity}; \, y{-axis} = \theta \)

Hint:

In powder diffraction, the x-axis typically represents the diffraction angle \( 2\theta \), and the y-axis represents the intensity of the diffraction peaks. This relationship is crucial for determining the crystalline structure.

Answer 1

The Correct Option is A

In the powder diffraction pattern of a crystalline solid, the graph typically represents the diffraction angles and the intensity of diffracted rays. The variables in this graph are: 
Step 1: The x-axis represents the angle \( 2\theta \), which is the angle of diffraction. This angle is related to the scattering angle in X-ray diffraction experiments. 
Step 2: The y-axis represents the intensity of the diffracted rays, which shows the intensity of the peaks corresponding to specific diffraction angles.
Step 3: Thus, the correct variables for the powder diffraction pattern are: \( x{-axis} = 2\theta; \, y{-axis} = {intensity} \).