Do the situations in FIGURE represent possible electromagnetic waves? If not, why not?

Short Answer

Expert verified

a) It's NO electromagnetic waves.

b) It's electromagnetic waves.

Step by step solution

01

Electromagnetic waves

Waves transmitted by synchronous periodic fluctuations in electro magnetic flux strength include radio waves, ultraviolet, actinic radiation, ultraviolet, X-rays, and gamma radiation.

02

Find values using graph (part a and b)

From picture, we've got to find:

(a) The direction of vemis E×Bwhich might be along the x-axis. So, answer is not any.

(b) The Pointing vector requirement is satisfied.

So, answer is Yes.

(a) (b)

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 Vaia!

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

A 200MWlaser pulse is focused with a lens to a diameter of 2.0mm.

a. What is the laser beam’s electric field amplitude at the focal point?

b. What is the ratio of the laser beam’s electric field to the electric field that keeps the electron bound to the proton of a hydrogen atom? The radius of the electron orbit is 0.053nm.

2. Sharon drives her rocket through the magnetic field of FIGURE Q31.2 traveling to the right at a speed of 1000m/sas measured by Bill. As she passes Bill, she shoots a positive charge backward at a speed of 1000m/srelative to her.

a. According to Bill, what kind of force or forces act on the charge? In which directions? Explain.

b. According to Sharon, what kind of force or forces act on the charge? In which directions? Explain.

You've recently read about a chemical laser that generates a 20-cm-diameter,25MW laser beam. One day, after physics class, you start to wonder if you could use the radiation pressure from this laser beam to launch small payloads into orbit. To see if this might be feasible, you do a quick calculation of the acceleration of a 20-cm-diameter, 100kg, perfectly absorbing block. What speed would such a block have if pushed horizontally 100m along a frictionless track by such a laser?

Only 25%of the intensity of a polarized light wave passes through a polarizing filter. What is the angle between the electric field and the axis of the filter?

In reading the instruction manual that came with your garagedoor opener, you see that the transmitter unit in your car produces a250mW,350MHzsignal and that the receiver unit is supposed to respond to a radio wave at this frequency if the electric field amplitude exceeds0.10V/m. You wonder if this is really true. To find out, you put fresh batteries in the transmitter and start walking away from your garage while opening and closing the door. Your garage door finally fails to respond when you're 42maway. What is the electric field amplitude at the receiver when it first fails??

See all solutions

Recommended explanations on Physics Textbooks

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.

Sign-up for free