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Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

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Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 6.1, Problem 2RC
Textbook Problem
538 views

What is the wavelength of an FM radio signal that has a frequency of 91.7 MHz?

  • (a) 306 nm
  • (b) 306 mm
  • (c) 3.27 m
  • (d) 3.27 × l06 m

Interpretation Introduction

Interpretation: The wavelength of FM radio signal is to be determined from the given option.

Concept introduction:

  • Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc.
  • The frequency of the light is inversely proportional to its wavelength.

ν=cλwhere, c=speedoflightν=frequencyλ=wavelength

Explanation of Solution

Reason for correct option

Given,

The frequency of FM radio signal is 91.7MHz=91.7 ×106Hz=91.7 ×106s1

The speed of light,c=2.998×108m/s

The wavelength of FM radio signal is calculated by using the equation,

λ=cν=2.998×108m/s91

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Chapter 6 Solutions

Chemistry & Chemical Reactivity
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