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The intensity of X-rays from a Coolidge tube is plotted against wavelength as shown in the figure. The minimum wavelength found is $λ_{c}$ and the wavelength of the $K_{α}$ line is $λ_{K}$ . As the accelerating voltage is increased

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λK−λC increases

λK−λC decreases

λK increases

λK decreases

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detailed solution

Correct option is A

Wavelength λK. is independent of the accelerating voltage (V) while the minimum wavelength )λc is inversely proportional to V. Therefore as V increases λK remains unchanged whereas λc decreases or λK- λcwill increase.

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The intensity of X-rays from a Coolidge tube is plotted against wavelength as shown in the figure. The minimum wavelength found is λc and the wavelength of the Kα line is λK. As the accelerating voltage is increased

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The intensity of X-rays from a Coolidge tube is plotted against wavelength as shown in the figure. The minimum wavelength found is $λ_{c}$ and the wavelength of the $K_{α}$ line is $λ_{K}$ . As the accelerating voltage is increased