Question

(i) Find the maximum frequency of X-rays produced by an X-ray tube operating at a tube potential of 66 kV.
(ii) State any one difference between characteristic X-rays and continuous X-rays.

Answer 1

(i)  Potential difference  V = 66 × 10³ V

     Maximum frequency =`(ev)/h`

 ` =(1.6 xx 10^(-19) xx66xx10^3)/(6.6 xx10^(-34))`

   = 1.6 ×10^-19 × 10⁴ × 10³⁴ 

Maximum frequency = 1.6 v × 10¹⁹ Hz.

(ii)  Continuous X-rays consists of all possible wavelength of X-rays with the lower wavelength limit whereas characteristic or line X-rays consists of definite wavelength superimposed on continuous X-ray.