Wanne abin mamaki ne da gaske yake wanzuwa, tasirin photoelectric ko ultraviolet cascades? Bisa ga tambayar da ta gabata, ka rubuta mahallin da ke ɗauke da amsar. Zai iya zama jumla 1 - 20. Abubuwan da ke ciki:
Koyaya, ƙoƙarin sulhunta ka'idar electromagnetic tare da lura biyu, tasirin photoelectric, da rashin kasancewar bala'in ultraviolet, ya tabbatar da matsala. Ta hanyar aikin manyan masana kimiyyar lissafi, an kirkiro wata sabuwar ka'idar electromagnetism ta amfani da kimiyyar lissafi. Wannan gyare-gyare na ƙarshe ga ka'idar electromagnetic a ƙarshe ya haifar da electrodynamics na quantum (ko QED), wanda ke bayyana cikakkun abubuwan da ke faruwa na electromagnetic kamar yadda ake magana da su ta hanyar raƙuman ruwa da aka sani da photons. A cikin QED, photons sune ainihin musayar musayar, wanda ya bayyana duk hulɗar da ke da alaƙa da electromagnetism ciki har da ƙarfin electromagnetic. [Note 4]