The energy-level diagram for the atomic emission spectra of an unknown gas is presented in the diagram below. ▼ Part A Submit Request Answer n=4 ? n=3 n=2 n=1 4.2 eV 2.4 eV Initially, electrons are in both the ground and first excited state (n=1 and n=2). A beam of light hits the gas. This beam is a continuous spectrum of yellow/green light (from 495 nm to 590 nm) How many absorption line/s will there be in the spectra? [5] ΑΣΦ 2.0 eV 0 eV BEG YO Color Wavelength Frequency violet 380-450 nm 668-789 THz blue 450-495 nm 606-668 THz green 495-570 nm 526-606 THz yellow 570-590 nm 508-526 THz orange 590-620 nm 484-508 THz red 620-750 nm 400-484 THz Photon energy 2.75-3.26 eV 2.50-2.75 eV 2.17-2.50 eV 2.10-2.17 eV 2.00-2.10 eV 1.65-2.00 eV

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Wien's displacement law

Students often get confused between Wien's displacement law and Planck's radiation law. Although both are historically related, yet they are conceptually different. Planck's law helps determine the spectrum of a blackbody, while Wien's law determines the relationship between peak wavelength and temperature.