A) 24.8
B) 12.4
C) 6.2
D) 3.1
Correct Answer: C
Solution :
Given : Minimum wavelength of X-ray \[\lambda =0.2\times {{10}^{-9}}m\]and \[h=6.63\times {{10}^{-34}}\,Js.\] \[e=1.6\times {{10}^{-19}}\]coulomn and \[e=3\times {{10}^{8}}\,m/s\] The minimum wavelength of continuous X-ray spectrum \[{{\lambda }_{\min }}=\frac{hc}{eV}\] \[V=\frac{hc}{e{{\lambda }_{\min }}}\] \[=\frac{6.63\times {{10}^{-34}}\times 3\times {{10}^{8}}}{1.6\times {{10}^{-19}}\times 0.2\times {{10}^{-9}}}\] \[=6.2\times {{10}^{2}}=6.2\times {{10}^{3}}\,\text{volt}\] \[=6.2\,kV\]You need to login to perform this action.
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