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Question
An electron beam is accelerated by a potential difference V to hit a metallic target to produce X-rays. It produces continuous as well as characteristic X-rays. If λmin is the smallest possible wavelength of X-ray in the spectrum, the variation of log λmin with log V is correctly represented in:
Options
MCQ
Solution
Explanation:
In the X-ray tube, λmin = `"hc"/"eV"`
In λmin = `"In"("hc"/"e") - "InV"`
The slope of the log λmin against the log V graph is clearly negative.
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