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Chapter 33: Q. 8 (page 954)

a. Green light shines through a 100-mm-diameter hole and is observed on a screen. If the hole diameter is increased by 20%, does the circular spot of light on the screen decrease in diameter, increase in diameter, or stay the same? Explain.

b. Green light shines through a 100−μm-diameter hole and is observed on a screen. If the hole diameter is increased by20%, does the circular spot of light on the screen decrease in diameter, increase in diameter, or stay the same? Explain.

Short Answer

Expert verified

(a) The rounded spot of light display on the screen increases.

(b) The rounded spot of light display on the screen decreses.

Step by step solution

01

Introduction

A hole diameter, often known as a PHD, is the size of a producing tool used to drill holes. As a result, the hole size diameter estimate for non-plated through holes and plated through holes differed.

02

Explanation

By increasing the hole diameter, the size of both the spot on the screen will grow. The reason for this is that when the diameter grows bigger, ray glasses will take precedence over wave optics.

03

Explanation

Increasing the diameter of the hole by 20%reduces the diameter of the spot on the screen. We must address diffraction effects when the hole is close to 1mmbecause it is of the same order as the wavelength of light.

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