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Chemistry In Focus

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

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Section
BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 7, Problem 10E
Textbook Problem
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What does the MHz dial on a radio signify?

Interpretation Introduction

Interpretation:

Signification of the MHz dial on the radio is to be explained.

Concept introduction:

Frequency is the number of rays or beams that pass through a fixed point at a given time.

Radio waves are the waves or radiation with frequencies as high as 300gigahertz to as low as 30gigahertz.

The technology used to carry information like sounds and images with the help of radio waves by systematic modulation is called radio.

The distance between two consecutive crests of a wave of light is called the wavelength.

Explanation of Solution

A radio wave is an electromagnetic wave that is propagated by an antenna. Radio waves exhibit different frequencies and, a specified signal can be picked by tuning a radio receiver to a specific frequency...

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Chapter 7 Solutions

Chemistry In Focus
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Ch. 7 - What is the function of sunscreen and of UV...Ch. 7 - What prevents large amounts of high-energy UV and...Ch. 7 - What is unique about X-rays?Ch. 7 - What does the MHz dial on a radio signify?Ch. 7 - Explain how night vision works. How do microwave...Ch. 7 - What are phosphorescence and fluorescence? How do...Ch. 7 - What is spectroscopy?Ch. 7 - What is nuclear magnetic resonance (NMR)?Ch. 7 - How does magnetic resonance imaging (MRI) work?Ch. 7 - Describe the difference between laser light and...Ch. 7 - Describe how a laser works.Ch. 7 - Classify each of the following lasers as to type...Ch. 7 - What is unique about a dye laser?Ch. 7 - Why have semiconductor lasers become common in...Ch. 7 - What are the advantages of using laser light in...Ch. 7 - Describe the light-related discoveries of each of...Ch. 7 - Speed of Light The Sun is 1.5108km from Earth. How...Ch. 7 - The speed of sound is 330m/s. If fireworks are...Ch. 7 - The nearest star, Alpha Centauri, is 4.3 light-...Ch. 7 - Counting the seconds between a flash of lightning...Ch. 7 - Make a drawing, such as Figure 7.3, which shows...Ch. 7 - Make a drawing, such as Figure 7.3, which shows...Ch. 7 - Arrange the following three wavelengths of light...Ch. 7 - Arrange the following three frequencies of light...Ch. 7 - Which of the following types of light would be...Ch. 7 - Which wavelength of light is most likely to cause...Ch. 7 - List two types of electromagnetic radiation that...Ch. 7 - List two types of electromagnetic radiation that...Ch. 7 - Wavelength and Frequency Make a sketch...Ch. 7 - The violet edge of the visible spectrum occurs at...Ch. 7 - Of the following types of electromagnetic...Ch. 7 - Of the following types of electromagnetic...Ch. 7 - Calculate the wavelength of the radio waves used...Ch. 7 - Calculate the wavelength of the radio waves used...Ch. 7 - Cellular phones operate at frequencies of...Ch. 7 - If an FM radio wave signal has a wavelength of...Ch. 7 - Absorption of Light and Spectroscopy Light from a...Ch. 7 - A lamp emits red light of 671nm. What element is...Ch. 7 - Light from a distant star is analyzed and found to...Ch. 7 - Light from a fluorescent light source is analyzed...Ch. 7 - Light from a fluorescent light source is analyzed...Ch. 7 - A surgeon plans to remove a red port-wine stain....Ch. 7 - Describe how white light interacts with a colored...Ch. 7 - How would our lives change if our eyes could see...Ch. 7 - A look at the entire spectrum of light reveals...Ch. 7 - A stereotypical philosophical question is, If a...Ch. 7 - Explain why some clothes glow under black light...Ch. 7 - MRI has been able to trace specific brain...Ch. 7 - Read the box What if... X-Rays-Dangerous or...Ch. 7 - Read the box What if... The Mind-Body Problem in...Ch. 7 - The following drawing shows white light passing...Ch. 7 - The following shows two pictures of the same...Ch. 7 - Read the box What if... The Cost of Technology in...

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