# Repeat Problem 25 assuming that n 1 < n 2 < n 3 . Data From Problem

## Question:

Repeat Problem 25 assuming that n_{1} < n_{2} < n_{3}.

**Data From Problem 25**

A thin film is viewed both in reflected and transmitted light at normal incidence. The figure shows the strongest two rays for each. Show that if rays 1 and 2 interfere constructively, then rays 3 and 4 must interfere destructively, and if rays 1 and 2 interfere destructively, then rays 3 and 4 interfere constructively. Assume that n2 is the largest of the three indices of refraction.

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**Related Book For**

## College Physics With An Integrated Approach To Forces And Kinematics

**ISBN:** 978-1260547719

5th Edition

**Authors:** Alan Giambattista