Q60
X-rays were produced using cobalt (Z = 27) as target. It was observed that the X-ray spectrum contained a strong Kα line of wavelength 0.1785 nm an a weak Kα line of wavelength 0.1930 nm. Then the weak Kα line is due to an impurity whose atomic number is
A.
25
B.
26
AnswerC.
28
D.
30
Answer: Option B
Solution
Answer: Option B
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