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標題:
What is a line spectrum ???
發問:
What is a line spectrum ??? In terms of the waves emitted, what is meant by a monochromatic source ????
最佳解答:
Line spectrum is an experiment showing that the energy levels of an atom are discrete and for each transition of electrons between any levels has a definite frequency of radiation associated. The most common examples are emission and absorption spectra of hydrogen atom. In the experiment, atomized hydrogen is injected into a discharge tube under an extremely low pressure (about 0.1 mm of Hg) and a high voltage is applied across the tube so that electrons of the hydrogen atoms have chance to be excited. As soon as they are excited they will fall back to the original energy level (ground state) in which radiation in form of photos is emitted. The frequencies of the photos are of some definite value according to the energy level difference. A monochromatic source is known as 單色光源 in Chinese. So to speak, such source emits radiation of one frequency only as colour of light is related to its frequency. One example is the sodium lamp.
其他解答:
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What is a line spectrum ???
發問:
What is a line spectrum ??? In terms of the waves emitted, what is meant by a monochromatic source ????
最佳解答:
Line spectrum is an experiment showing that the energy levels of an atom are discrete and for each transition of electrons between any levels has a definite frequency of radiation associated. The most common examples are emission and absorption spectra of hydrogen atom. In the experiment, atomized hydrogen is injected into a discharge tube under an extremely low pressure (about 0.1 mm of Hg) and a high voltage is applied across the tube so that electrons of the hydrogen atoms have chance to be excited. As soon as they are excited they will fall back to the original energy level (ground state) in which radiation in form of photos is emitted. The frequencies of the photos are of some definite value according to the energy level difference. A monochromatic source is known as 單色光源 in Chinese. So to speak, such source emits radiation of one frequency only as colour of light is related to its frequency. One example is the sodium lamp.
其他解答:
●九州 娛樂 網站 http://ts777.cc ●●●運彩遊戲、真人遊戲、電子遊戲、對戰遊戲、對戰遊戲●●● ●新舊會員儲值就送500點 ● 真人百家樂彩金等你拿 ●線上影片直播、正妹圖、討論區免費註冊 歡迎免費體驗交流試玩! ●九州 娛樂 網站 http://ts777.cc|||||手機刪除line照片不見真的難過 這家案例夠多，手機記憶體內外都可以，也沒限什麼牌子三星，HTC，SONY都可以，不過要等的比較久才知道原來要分析不是換零件哪麼簡單，心急吃不了熱豆腐，http://www.datahelp.com.tw htt[://www.data1.com.tw|||||他跟你有 一樣的問題 ＴＳ７７。ＣＣ|||||台中網路行銷首選-。。眾智數位科技網路行銷。。 你知道嗎? 網站訪問流量的第一來源竟是搜尋引擎之網站排名SEO!!企業該如何做好部落格行銷呢?知識家行銷呢?網站排名呢?網路行銷呢?全方位的網路行銷能帶來哪些好處呢?如何在茫茫人海中對你有印象?對你的產品有印象?熟悉你的品牌?要如何在琳瑯滿目的商品購買你?決定買你?喜歡持續購買你呢?要如何在眾網路平台中看見你?釘睛於你呢?品牌忠誠於你呢?網路無所不在，看不見你的訊息都難!眾智數位科技具有網路行銷十多年的經驗!歡迎您隨時來電詢問~。。眾智數位科技有限公司。。SEO_line_App行銷(眾智數位)
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