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Totalna refleksija na prizmi - phy

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Mjerenje indeksa loma n prizme<br />

Treba primijeniti Snell-ov zakon loma <strong>na</strong> 1. plohu<br />

prizme , te <strong>na</strong> drugu. U slučaju minimuma<br />

devijacije δ min dobije se jednostavnija relacija:<br />

n= sin u 1 / sin l 1 = [sin (δ min +A) /2 ] .( sinA/2 ) -1<br />

• pri minimumu devijacije su upadni kut u 1 i kut loma l 1<br />

<strong>na</strong> 1. i 2. plohi , zbog simetrije isti.

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