The angle corresponding to maximum diffra ction of x-rays on solid crystal is determined by electrometre reading in

Options

A. Bragg's equation
B. Powder method
C. Debye- Hull method
D. Max Von Laue experment

Answer

To solve the question regarding the angle corresponding to maximum diffraction of X-rays on a solid crystal, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Bragg's Law**: The maximum diffraction of X-rays by a crystal is described by Bragg's Law, which is given by the equation:
\[ n\lambda = 2d \sin \theta \]
where:
- \( n \) = order of diffraction (an integer)
- \( \lambda \) = wavelength of the X-rays
- \( d \) = distance between the crystal planes (interplanar spacing)
- \( \theta \) = angle of diffraction

2. **Identifying the Variables**: In this equation, we need to identify the variables involved:
- The angle \( \theta \) is what we are trying to determine for maximum diffraction.
- The wavelength \( \lambda \) and the interplanar spacing \( d \) are constants for a given crystal and X-ray source.

3. **Rearranging the Equation**: To find the angle \( \theta \), we can rearrange Bragg's Law:
\[ \sin \theta = \frac{n\lambda}{2d} \]

4. **Calculating the Angle**: To find \( \theta \), we take the inverse sine (arcsin) of both sides:
\[ \theta = \arcsin\left(\frac{n\lambda}{2d}\right) \]
This equation gives us the angle corresponding to the maximum diffraction for a specific order \( n \).

5. **Conclusion**: The angle corresponding to maximum diffraction of X-rays on a solid crystal can be determined using Bragg's Law, and it is dependent on the wavelength of the X-rays, the interplanar spacing of the crystal, and the order of diffraction.