Physics-
General
Easy
Question
The intensity distribution of X-rays from two coolidge tubes operated on different voltages V1 and V2 and using different target materials of atomic numbers Z1 and Z2 is shown in the figure. Which one of the following inequalities is true?
- V1 > V2, Z1 < Z2
- V1 > V2, Z1 > Z2
- V1 < V2, Z1 > Z2
- V1 = V2, Z1 < Z2
The correct answer is: V1 > V2, Z1 < Z2
Þ
(see graph) Þ
Moseley’s law
Þ 
(see graph for characteristic lines) Þ
.
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