Solid targets of different elements are bombarded by highly energetic electron beams. The frequency (f) of the characteristic X-rays emitted from different targets varies with atomic number Z as
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
According to Moseley's law
or, 
.
where 
is the screening constant. Many authors use at this level, 
approximately.
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