Question
Physics Question on Wave optics
In a X-Ray tube operating at 20 kV, the ratio of the de-Broglie wavelength of the incident electrons to the shortest wavelength of the generated X-rays is ________ (rounded off to two decimal places).
Given: e/m ratio for an electron = 1.76×1011 Ckg-1 and the speed of light in vacuum is 3×108 ms -1
Answer
The correct answer is: 0.12 to 0.16 (approx)