It is observed that characteristic X-ray spectra of elements show regularity. When frequency to the power '' i.e. of X-rays emitted is plotted against atomic number Z, the following graph (a straight

Question

It is observed that characteristic X-ray spectra of elements show regularity. When frequency to the power '' i.e.  of X-rays emitted is plotted against atomic number Z, the following graph (a straight line) is obtained. The value of '' is:

Canvas Classes · Accepted Answer

Strategy:
 Use Moseley's quantitative relationship between X-ray frequency and atomic number. The linear relationship is found by correlating the square root of frequency with the atomic number.

Step 1: Analyze the relationship
Moseley's Law states that .
This can be written as:

Step 2: Compare with the given plot
The problem states that plotting  against  gives a straight line. By comparing this to Moseley's Law, we find:

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