In a Coolidge tube, the potential difference used to accelerate the electrons is increased from 12.4 kV to 24.8 kV. As a result, the difference between the wavelengths of K_(alpha)-line and minimum wavelength increases to thrice its former value. The wavelength of the K_(alpha) line is (hc)/(e)=(12.4 KVA) In a Coolidge tube the difference between [...]