Question

Identify the graph which correctly represents Moseley's law.

• A. A
• B. B
• C. C
• D. D

Hint:

Moseley's law is fundamental in understanding the relationship between X-ray frequencies and atomic number.

Answer 1

The Correct Option is B

Step 1: Understanding Moseley's law.
Moseley's law states that the square root of the frequency of the X-ray line is proportional to the atomic number \( z \) of the element. Mathematically: \[ \sqrt{f} \propto (z - \text{constant}) \]
Step 2: Analyzing the options.
The graph should plot the square of the frequency (\( f \)) against the atomic number \( z \). The correct representation is option (B) \( f \) vs \( z \).
Step 3: Conclusion.
Therefore, the correct graph is option (B).

Final Answer: \[ \boxed{\text{(B) } f \text{ vs } z} \]