Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 1.00 W/m2. If a radar unit leaks 10.0 W of microwaves (other than those sent by its antenna) uniformly in all directions, how far away must you be to be exposed to an average intensity considered to be safe? Assume that the power spreads uniformly over the area of a sphere with no complications from absorption or reflection.
minimum safe exposure distance: mm
What is the maximum electric field strength at this distance?
maximum electric field strength: V/m
Note: Early radar units leaked more than modern ones do. This caused identifiable health problems, such as cataracts, for people who worked near them.
Don't forget to multiply 2 with "I " when solving for "Total Energy Density". (aka the last problem)
I used the same formula as above:
E= sqroot( (I*2)/(eo*C))
(The only difference is multiplying 2 in the equation.)
=> The equation above is based on "I_average" intensity formula.
I_avg= (ceE^2)/2
(This is where the "extra" two is coming from)
Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 1.00...
Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 1.00 W/m². If a radar unit leaks 10.0 W of microwaves (other than those sent by its antenna) uniformly in all directions, how far away must you be to be exposed to an average intensity considered to be safe? Assume that the power spreads uniformly over the area of a sphere with no complications from absorption or reflection minimum safe exposure distance: What is the...
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The first answer is correct, I just don't know how to get the second part. Please help me Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 2.00 W/m^2. If a radar unit leaks 10.0 W of microwaves (other than those sent by its antenna) uniformly in all directions, how far away must you be to be exposed to an average intensity considered to be safe? Assume that the power spreads uniformly over the...
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