At a certain location, electromagnetic wave 1 is measured to have an average electric field of...

60.1K

Verified Solution

Question

Physics

At a certain location, electromagnetic wave 1 is measured tohave an average electric field of Eav = 152 N/C, andelectromagnetic wave 2 is measured to have an average magneticfield of Bav = 0.87 µT.

a. (5 points) Calculate the average intensity of each wave.

b. (5 points) If the electromagnetic waves are being measured0.54 m from their light sources (assume that they are emittinglight uniformly in all directions), what average power is eachsource emitting? By how many 60 W incandescent light bulbs wouldeach light source need to be replaced to emit the same averagepower?

c. (5 points) Suppose an average human sun bathes in the lightfrom wave 2 for 45 minutes. If we assume that this person exposes0.45 m 2 of their skin to this light and that none of the light isreflected by the skin, how much energy is absorbed into their skin?If you could somehow utilize this energy to lift a 70. kg person onthe surface of the Earth, how high could the person be lifted?

d. (5 points) Assume that both light waves are initiallyunpolarized. We decide to send the higher intensity light wavethrough a polarizer-analyzer combination so that its finalintensity matches that of the lower (unpolarized) intensity lightwave. If the transmission axis of the first polarizer ishorizontal, how must the transmission axis of the analyzer beoriented so that the light intensities match? Express your angle asmeasured from the vertical axis

Answer & Explanation Solved by verified expert
4.5 Ratings (857 Votes)
givenEavg 152 NCand electromagnetic wave 2 is measured to have an averagemagnetic field of Bavg 087 T 087 x 106 Ta Iavg 12 o C Eo2 12 C Bo2 othe average electric and magnetic field vectors    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students