Question

The graph between the square root of the frequency of a specific line of the characteristic spectrum of X-ray and the atomic number of the target will be

• A. A
• B. B
• C. C
• D. D

Hint:

According to Moseley's law, the frequency of characteristic X-ray lines is proportional to the square root of the atomic number.

Answer 1

The Correct Option is B

The relationship between the frequency of the X-ray spectrum and the atomic number \( Z \) is given by Moseley's law, which is a linear relationship. The graph will have a negative square root dependence.

Step 2: Conclusion.
The graph follows the form \( -\sqrt{Z} \), corresponding to option (b).