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Chapter 33: Q. 9 (page 954)

A Michelson interferometer using 800nm light is adjusted to have a bright central spot. One mirror is then moved 200nm forward, the other 200nm back. Afterward, is the central spot bright, dark, or in between? Explain.

Short Answer

Expert verified

The central spot of light is bright.

Step by step solution

01

Introduction

X - rays are electromagnetic wave that allows the human eye to see or make objects visible. It can also be considered as radiation that can be seen with the naked eye. Photons are tiny packets of energy that make up light.

02

Explanation

The path length is raised or lowered by 400nmwhen a mirror is moved by 200nm. Because one mirror is pushed in and the other is moved out, the path length difference is increased by 400nm.The entire difference in route length is 800nm, which is equal to the wavelength of light. As a response, the spot will continue bright because no net difference in phase difference was generated.

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