diffraction from an unknown cubic metal is observed to occur at following value using cu radiation.
To determine the diffraction pattern of a cubic metal using Cu radiation, you would need to perform an experiment known as X-ray diffraction. This technique involves shining X-rays onto the metal sample and analyzing the resulting diffraction pattern.
Here's how you can perform the experiment:
1. Set up the X-ray diffraction apparatus: This typically consists of an X-ray source, a sample holder, and a detector that measures the intensity of the diffracted X-rays.
2. Clean and prepare the metal sample: The metal sample should be polished and free from impurities or contaminants that may affect the diffraction pattern.
3. Position the metal sample in the X-ray beam: The metal sample is placed in the sample holder, which is then positioned in the path of the X-ray beam.
4. Adjust the angles: Use a goniometer or other adjustable mount to position the sample at a specific angle with respect to the incident X-ray beam. This angle is called the glancing angle or the Bragg angle.
5. Measure the diffraction angles: Rotate the sample around its axis and record the angles at which the diffraction occurs. You can use a protractor or an angle-measuring device to measure these angles accurately.
6. Analyze the diffraction pattern: From the measured diffraction angles, you can determine the angles at which the X-rays interact with the crystal lattice of the metal. These angles can be used to calculate the lattice spacing and the crystallographic structure of the metal.
In the case of an unknown cubic metal, the observed diffraction angles can give you information about the lattice constant and the possible crystal structure of the metal. From there, you can compare the observed diffraction angles with known diffraction patterns for different cubic crystal structures (e.g., face-centered cubic, body-centered cubic) to determine the most likely structure.
It's important to note that the specific values of the diffraction angles observed for the unknown cubic metal using Cu radiation were not provided in your question. To get a more accurate analysis and identification of the metal, you would need the actual diffraction angle values.