Download the App!

Get 24/7 study help with the Numerade app for iOS and Android! Enter your email for an invite.

$\bullet$$\bullet$ A sinusoidal electromagnetic wave emitted by a cellular phone has a wavelength of 35.4 $\mathrm{cm}$ and an electric field amplitude of $5.40 \times 10^{-2} \mathrm{V} / \mathrm{m}$ at a distance of 250 $\mathrm{m}$ from the antenna. Calculate: (a) the frequency of the wave; (b) themagnetic-field amplitude; (c) the intensity of the wave.

Get the answer to your homework problem.

Try Numerade free for 7 days

Like

Report

a) $f=8.47 .10^{8} \mathrm{H} z$b) $B_{\max }=1.80 \cdot 10^{-10} \mathrm{T}$c) $I=3.87 .10^{-6} \mathrm{W} / \mathrm{m}^{2}$

Physics 102 Electricity and Magnetism

Physics 103

Chapter 23

Electromagnetic Waves and Propagationof Light

Electromagnetic Waves

Reflection and Refraction of Light

University of Washington

University of Sheffield

University of Winnipeg

McMaster University

Lectures

02:30

In optics, ray optics is a geometric optics method that uses ray tracing to model the propagation of light through an optical system. As in all geometric optics methods, the ray optics model assumes that light travels in straight lines and that the index of refraction of the optical material remains constant throughout the system.

10:00

In optics, reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected. Reflection may also be referred to as "mirror image" or "specular reflection". Refraction is the change in direction of a wave due to a change in its speed. The refractive index of a material is a measure of its ability to change the direction of a wave. A material with a higher refractive index will change the direction of a wave to a greater degree than a material with a lower refractive index. When a wave crosses the boundary between two materials with different refractive indices, part of the wave is refracted; that is, it changes direction. The ratio of the speeds of propagation of the two waves determines the angle of refraction, which is the angle between the direction of the incident and the refractive rays.

02:13

A sinusoidal electromagnet…

05:10

0:00

03:39

03:56

A simusoidal electromagnet…

03:48

$\bullet$$\bullet$ A sinus…

05:00

An electromagnetic wave wi…

03:32

02:17

$\bullet$ The electric fie…

03:55

In the first part of this problem, we're going to calculate the frequency of the well which we call left. So let's define the frequency as F vehicles to see Orlando. We called it equating number one when setting the weather's into the square and we can write difficult to. We have developed for C as a 3.0 multiply returns. Far it Major Parseghian you wanted by we have the value for Linda is 35.4. Multiply by Thomas Bar minus two. Me too. So this will give us a value for efforts. F equals two. Uh, it went for seven. Multiply by 10 is far. Eight hours. So this is the required answer. No, it might be on this problem. We are going to kill What? Di amplitude off defeat. That is what we call be note. So we know it is given by being articles, too. You know what he wanted by see? What do you say? No to the maximum, uh, electric field. And this c is the speed of light in Like you. We call this equation as equation about two. Now, when setting the wires into the square and we can write. It has, you know, tickles too. We have very for you know, there's a zero point 05 full zero watch per meter you wanted by we have developed for C has a 3.0 multiplied by tennis bar, head meter per second. So this will give us the weather for the note as it you know, tickled toe. Uh, one point did zero. What a way to my spot. Minus 10 Tesla. So this is the required answer for it's been no. In the and the third part of this problem, we are going to kill. Glad the intensity of the left, which we call. So I was going by I called to one of our two, uh, have slow, not see on then. Square you not square Sony. So here's the steps. Not noticed. The political free spaces the spinoff light in vacuum and you notice that electric field magnitude off like field now inciting the whalers into the square weaken. Why does equals two? When I was two, then we have the value for its owner. Noticed 8.85 multiply Every term is far minus 12. Poland square for new 10 meter square Onda. Then we have the valley for C as 3.0 much tennis ball it meter Pastika on that we have developed for Yes, you know it. As as you know, point. As you know, five for zero world per meter. So this would you want your idea? For I Is that equals two 3.83 Multiply by terrorists bar minded suits. What per meter square. So this is the required answer. Thank you.

View More Answers From This Book

Find Another Textbook

02:59

15. Three equal masses are suspended from an arrangement of two fixed and on…

09:47

DYNAHICS A 4 kg mass 14 is attached to a 10 kg mass mB which can slide On a …

02:10

A 50 kg child runs off a dock at 2.0 ms " (horizontally) and lands wait…

01:44

The critical angle for refraction certain liquid-air surface is 46" . W…

02:23

6.A ray of light in diamond (n= 2.24) is incident on an interface with the a…

02:51

Worksheet 2.7 Uniform1) Bumblebee jumps straight upwards with a velocity…

01:17

Which of these arrows represents the vector <-4,2,0>?VectorVec…

01:01

3.In the drawing shown the large wheel has & radius of 7.1 m A rope is w…

01:59

wagon? total work done on the For the as in question 4, what is the same wag…