Normal body temperature is about 307k. an infrared detector which measures the power per area (r = p/a, where r=sigma*t^4) radiated from a small section of skin is sensitive to variations in r of 1%. what temperature difference can be detected?

step-by-step explanation:

we are given

we have to simplify it

firstly, we will factor it

now, we can cancel like terms

now, we can combine it

so, we get

0 = 0.40 / 0 = 0

= 0.20 = 9.80 ⁄2 =?

=0 , = = 0.20 =0.50 0 0.40 ⁄

=0−122 =0−12(9.80 ⁄2)(0.50)2 =1.2