Video: Dab tsi yog ob tus cwj pwm ntawm electromagnetic radiation?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
EM hluav taws xob yog li-npe vim hais tias nws muaj hluav taws xob thiab sib nqus teb uas ib txhij oscillate nyob rau hauv dav hlau mutually perpendicular rau ib leeg thiab rau cov kev taw qhia ntawm propagation los ntawm qhov chaw. ✓ Electromagnetic hluav taws xob muaj cov dual xwm : nws nthuav tawm cov khoom yoj thiab cov khoom siv (photon).
Ib yam li ntawd, nws raug nug, Dab tsi yog qhov teeb meem kev coj cwj pwm?
Dual cwj pwm ntawm qhov teeb meem txhais tau hais tias cov khoom hais ntawm atomic scale nyob rau hauv qee qhov xwm txheej coj li hais thiab hauv qee qhov xwm txheej coj li nthwv dej. Qhov no txhais tau hais tias qee qhov tshwm sim muaj feem xyuam nrog cov particle tsuas yog piav qhia yog tias peb tsis nco qab nws yog qhov particle xwm thiab suav tias yog nthwv dej.
Ib sab saum toj no, dab tsi yog qhov tseem ceeb ntawm hluav taws xob hluav taws xob hluav taws xob? Cov Qhov tseem ceeb ntawm electromagnetic hluav taws xob yog oscillating hluav taws xob nqi, uas emit oscillating hluav taws xob thiab magnetic teb.
Nyob rau hauv no txoj kev, electromagnetic hluav taws xob nyob rau hauv chemistry yog dab tsi?
Electromagnetic hluav taws xob yog ib hom ntawm lub zog uas yog tsim los ntawm oscillating hluav taws xob thiab sib nqus cuam tshuam, los yog los ntawm kev txav ntawm cov khoom siv hluav taws xob los ntawm lub tshuab nqus tsev lossis teeb meem.
Dab tsi yog ob qhov xwm txheej ntawm lub teeb?
Cov dual xwm ntawm lub teeb txhais tau tias, hauv qee qhov kev sim, teeb coj li nthwv dej. Hauv lwm qhov kev sim, teeb coj li ib tug particle. Xyoo 1801, Thomas Young ci ntsa iab teeb nruab nrab ntawm ob qhov chaw nyob ib sab. Xyoo 1905, Albert Einstein's photoelectric effect xyaum sim qhia tias lub teeb ntawm teeb muaj peev xwm eject electrons los ntawm ib tug hlau.
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