/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 4 List some similarities and diffe... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 29: Problem 4

List some similarities and differences between electromagnetic waves and sound waves.

Short Answer

Expert verified
Both electromagnetic and sound waves transfer energy, and they can be reflected, refracted, undergo diffraction and interference. The key differences are that electromagnetic waves can travel through the vacuum of space at a speed of about \(3.00 \times 10^8\) m/s, and are transverse waves. In contrast, sound waves require a medium for transmission, their speed in air is about 343 m/s, and they are longitudinal waves.

Step by step solution

01

Understanding Electromagnetic Waves

Firstly, recognize the characteristics of electromagnetic waves. These waves can travel through empty space at a speed of approximately \(3.00 \times 10^8\) meters per second. They include light, X-rays, and radio waves among others. Also, they are transverse waves, which means they vibrate at right angles to the direction of the wave.
02

Understanding Sound Waves

Secondly, know the properties of sound waves. These waves can't travel through empty space; they need a medium like air, water, or solids to transfer energy. Sound waves travel with a speed of roughly 343 meters per second in the air. These are longitudinal waves, meaning they vibrate in the same direction as the wave.
03

Identifying Similarities

Thirdly, find similarities between electromagnetic and sound waves. Both types of waves transfer energy, they can be reflected, refracted and can also undergo diffraction and interference.
04

Identifying Differences

Lastly, point out the differences between electromagnetic and sound waves. Main differences include the speed of transmission, the requirement of a medium for sound waves but not for electromagnetic waves, and the different types of waves (transverse for electromagnetic and longitudinal for sound).

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Show that it's impossible for an electromagnetic wave in vacuum to have a time-varying component of its electric field in the direction of its magnetic field. (Hint: Assume \(\vec{E}\) does have such a component, and show that you can't satisfy both Gauss's and Faraday's laws.)

One spacecraft has a sail that absorbs all light incident on it; the other has a perfectly reflective sail. How do their accelerations compare in light with the same intensity? a. The absorptive sail gives twice the acceleration. b. The reflective sail gives twice the acceleration. c. The absorptive sail gives greater acceleration, but not twice as much. d. The reflective sail gives greater acceleration, but not twice as much.

A cylindrical resistor of length \(L\), radius \(a\), and resistance \(R\) carries current \(I\). Calculate the electric and magnetic fields at the surface of the resistor, assuming the electric field is uniform over the surface. Calculate the Pointing vector and show that it points into the resistor. Calculate the flux of the Pointing vector (that is, \(\int \vec{S} \cdot d \vec{A}\) ) over the resistor's surface to get the rate of electromagnetic energy flow into the resistor, and show that the result is \(I^{2} R\) Your result shows that the energy heating the resistor comes from the fields surrounding it. These fields are sustained by the source of electric energy that drives the current.

Maxwell's equations in a dielectric resemble those in vacuum (Equations \(29.6-29.9)\) but with \(\epsilon_{0}\) replaced by \(\kappa \epsilon_{0}\). where \(\kappa\) is the dielectric constant introduced in Chapter \(23 .\) Show that the speed of electromagnetic waves in a electric is \(c / \sqrt{\kappa}\).

You're engineering a new cell phone, and you'd like to incorporate the antenna entirely within the phone, which is \(9 \mathrm{cm}\) long when closed. The antenna is to be a quarter-wavelength long-a common design for vertically oriented antennas. If the cell-phone frequency is \(2.4 \mathrm{GHz}\), will the antenna fit?
See all solutions

Recommended explanations on Physics Textbooks

Atoms and Radioactivity

Read Explanation

Waves Physics

Read Explanation

Space Physics

Read Explanation

Kinematics Physics

Read Explanation

Electricity

Read Explanation

Fields in Physics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.