Question

If an electron has kinetic energy k then find its de- broglie wavelength

Answer 1

Answer:

given =  kinetic energy of electron = k

to find = de -broglie wavelength

solution=

The formula for de Broglie wavelength is

                     λ =   $\frac{h}{\sqrt{2mE} }$

 

where ,

λ is wavelength,  

h is Planck's constant,  

m is the mass of a particle

E is the kinetic energy of an electron

                     

                               λ=     6.626 × 10 ⁻³⁴/  $\sqrt{2 x 9.1 x 10 }$⁻⁹× k

                         λ  =      42. 6k