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Grade 12Modern Physics

An X-ray tube operating at a potential difference of 37.2KV produces an X-Ray spectrum.Which of the following wavelenghts could be missing in the spectrum?:

a)0.2A

b)5.5A

c)10A

d)20A

Plz explain..

Profile image of Chilukuri Sai Kartik
15 Years agoGrade 12
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1 Answer

Profile image of vikash  kumar
15 Years ago

Expression for calculating minimum wavelength is hc/eV.

Substituting the values we get wavelength = 0.33 A

Therefore, alternative ( a ) is the right answer.