absorption spectrum

dark lines or regions at wavelengths where intervening material has absorbed some of the light

en-GB/əbˈsɔːpʃn ˈspɛktɹəm/
en-US/əbˈsɔɹpʃən ˈspɛktɹəm/

ক্যাটাগরি:

electromagnetic spectrumspectrum