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The intensity of X-rays from a Coolidge tube is plotted against wavelength \lambda as shown in the figure. The minimum wavelength found is \lambda_C and the wavelength of the \mathrm{K_\alpha} line is \mathrm{\lambda_{\mathrm{K}}}. As the accelerating voltage is increased
 

Option: 1

\lambda_{\mathrm{K}}-\lambda_{\mathrm{C}} increases
 


Option: 2

\lambda_{\mathrm{K}}-\lambda_{\mathrm{C}}decreases
 


Option: 3

\lambda_{\mathrm{K}} increases


 


Option: 4

\lambda_{\mathrm{K}}  increases


Answers (1)

best_answer

As the accelerating voltage is increased, \lambda_{\mathrm{C}} decreases while \lambda_{\mathrm{K}} remains the same

\therefore option 1 is correct.

Posted by

Irshad Anwar

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