Log in
Physics
1
answer
0
watching
431
views

The maximum allowed leakage of microwave radiation from a microwave oven is 5.0 mw/cm2. If mocrowave radiation outside an oven has the maximum value. What is the amplitude of oscillating electric field? 

Watch
1
answer
0
watching
431
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Rishabh Jain
Rishabh JainLv6
20 Oct 2020

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

In 1965, Arno Penzias and Robert Wilson discovered the cosmic microwave radiation left over from the big bang expansion of the Universe. Suppose the energy density of this background radiation is . Determine the corresponding electric field amplitude.   

A typical cell phone, which transmits microwaves, can have anoutput power as high as 2.0 W.

(a) Approximating the cell phone as a point source thatradiates evenly in all directions, calculate the radiationintensity of a cell phone at a distance of 2.00 in. which is theapproximate distance from your cell phone to your brain. Convertinches to whatever metric units you need, and give your answer inmilliwatts/cm2.

(b) The U.S. Food and Drug Administration limits the radiationleakage of microwave ovens to no more than 5.0 mW/cm2 at a distanceof 2.00 in. How does your answer above compare with the maximumallowable power density leaking from a microwave oven? (Answer asthe ratio of cellphone power / microwave power.)

The microwaves in a certain microwave oven have a wavelength of 12.2 cm.

a) How wide must this oven be so that it will contain five antinodal planes of the electric field along its width in the standing wave pattern?

b) What is the frequency of these microwaves?

c) Suppose a manufacturing error occurred and the oven was made 6.0cm longer than specified in part (a). In this case, what would have to be the frequency of the microwaves for there still to be five antinodal planes of the electric field along the width of the oven?

Weekly leaderboard

Home
Homework Help 3,900,000
Physics 110,000
Start filling in the gaps now
Log in