A) \[0.66\overset{o}{\mathop{\text{A}}}\,\]
B) \[938\overset{o}{\mathop{\text{A}}}\,\]
C) \[0.246\overset{o}{\mathop{\text{A}}}\,\]
D) \[0.123\overset{o}{\mathop{\text{A}}}\,\]
Correct Answer: D
Solution :
Here: Potential difference \[V=100\text{ }kV\] \[=100\times {{10}^{3}}V\] The minimum wavelength of the X-rays is \[{{\lambda }_{\min }}=\frac{hc}{eV}=\frac{6.6\times {{10}^{-34}}\times 3\times {{10}^{8}}}{1.6\times {{10}^{-19}}\times 100\times {{10}^{3}}}\] \[=0.123\times {{10}^{-10}}\] \[=0.123\overset{o}{\mathop{\text{A}}}\,\]
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