#### Question

Find the minimum wavelength of X-rays produced by 30 kV electrons.

#### Solution

Potential of the electrons, *V* = 30 kV = 3 × 10^{4} V

Hence, energy of the electrons, *E *= 3 × 10^{4} eV

Where,

*e* = Charge on an electron = 1.6 × 10^{−19} C

The minimum wavelength produced by the X-rays is given as:

`lambda = c/v`

`= (3xx10^8)/(7.24xx10^18) = 4.14 xx 10^(-11) m = 0.0414 nm`

Hence, the minimum wavelength of X-rays produced is 0.0414 nm.

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Solution Find The Minimum Wavelength of X-rays Produced by 30 Kv Electrons. Concept: Electron Emission.