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Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

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BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 7, Problem 50E
Textbook Problem
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How would our lives change if our eyes could see infrared light as well as visible light?

Interpretation Introduction

Interpretation:

The change in perceptiveness of life is to be explained if human eyes could see both infrared as well as visible light.

Concept Introduction:

Electromagnetic radiation ranges in wavelength from gamma waves region to radio waves region.

In the visible region, white light contains the spectrum of wavelengths ranging from 400 nm780 nm.

The infrared region extends from the nominal edge of the visible spectrum, which is 700 nm1 mm.

Explanation of Solution

The color of an object is not contained within the object. It is the color of the light which is not absorbed by it and is reflected back by it. In any substance, when atoms or molecules absorb certain wavelengths of light, they reflect the color which is not absorbed. When visible light strikes an object, a specific frequency of the light is absorbed. This frequency is never detected by human eyes. Any visible light, when strikes an object and gets reflected back, is visible to human eyes.

Therefore, humans can easily distinguish things on the basis of their color.

The electromagnetic spectrum is the range of all types of radiation from gamma to radio waves...

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Chapter 7 Solutions

Chemistry In Focus
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