請問snell's law..:－2016韓劇 38師機動隊】電視劇 38師機動隊劇情＆人物介紹～徐仁國‬、崔秀榮、馬東錫-小宅戲劇週記38師機動隊線上看

Blogtrottr

Yahoo!奇摩知識+ - 分類問答 - 科學常識 - 發問中

請問snell's law..

May 26th 2013, 16:43

這種情形會出現全內反射

n1*sin∠1=n2*sin∠2 的法則是為了遷就波在不同媒介下速率的不同，原因是波的某些部分會先到達媒介邊界，而其他部分則比較遲。為了在同一媒介保持相同速率的同時也維持波脈衝一致，波就會按比例折射，形成。如果n2大於n1，則∠1大於∠2。

可是sin函數最大值只有1，因此若果波是從媒介2行進到媒介1，則有可能沒有相應的折射角，此時就會出現全內反射，即波的全部會在邊界反射回媒介2。如果波可以剛好折射到媒介1(即折射角為90度)，該入射角就稱為臨界角。這就是允許波折射的最大入射角。

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends: 'You Say What You Like, Because They Like What You Say' - http://www.medialens.org/index.php/alerts/alert-archive/alerts-2013/731-you-say-what-you-like-because-they-like-what-you-say.html

You are receiving this email because you subscribed to this feed at blogtrottr.com.

If you no longer wish to receive these emails, you can unsubscribe from this feed, or manage all your subscriptions