JEE Main 202312 Apr, Morning shiftPhysicsMediumAtoms and Nuclei183× since 2002A 12.5 eV12.5 \mathrm{~eV}12.5 eV electron beam is used to bombard gaseous hydrogen at room temperature. The number of spectral lines emitted will be:AOption A. 2BOption B. 4COption C. 3DOption D. 1CheckSkip · show solution