A) 0.5 \[{{A}^{o}}\]
B) 0.75 \[{{A}^{o}}\]
C) 0.25 \[{{A}^{o}}\]
D) 1\[{{A}^{o}}\]
Correct Answer: C
Solution :
Minimum wavelength = cut off wavelength of X-ray \[{{\lambda }_{\min }}=\frac{hc}{eV}=\frac{12375}{V(in\,volt)}\overset{\text{o}}{\mathop{\text{A}}}\,\] \[{{\lambda }_{\min }}=\frac{12375}{50\times {{10}^{3}}}\overset{\text{o}}{\mathop{\text{A}}}\,=0.247=0.25\overset{\text{o}}{\mathop{\text{A}}}\,\]
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