X- rays are produced in an X- rays tube operating at a given accelerating voltage . The wavelength of the continuous X- rays has values from

Options

A. 0 to `oo`
B. `lamda_("min") "to" 00 "where" lamda_("min") gt 0`
C. 0 to `lamda_("max") "where" lamda_("max") lt oo`
D. `lamda_("min") "to" lamda_("max") "where" 0 lt lamda_("min") lt lamda_("max") lt oo`

Answer

B

Explanation

In an X -ray tube, cut off wavelength
`lamda_("min") = (12375)/(V) Å`
`therefore` The wavelength of the continuous X - rays have values varying from , `lamda_("min") " to " oo "where " lamda_("min") gt 0. ` (this is option b.)