An X-ray tube is operated at 50 kV. The minimum wavelength produced is

Options

A. 0.5 Å
B. 0.75 Å
C. 0.25 Å
D. 1.0 Å

Answer

C

Explanation

`lamda=(hc)/(eV)=(6.6xx10^(-34)xx3xx10^(8))/(1.6xx10^(-19)xx50xx10^(3))`
`lamda=(19.8xx10^(-26))/(80xx10^(-16))`
`=0.25`Å