Asked by Esther
Intensity of Light. The intensity I of light from a light bulb varies inversely as the square of the distance d from the bulb. Suppose that I is
90
W
/
m
2
90W/m2 (watts per square meter) when the distance is 5 m. How much farther would it be to a point where the intensity is
40
W
/
m
2
40W/m2?
90
W
/
m
2
90W/m2 (watts per square meter) when the distance is 5 m. How much farther would it be to a point where the intensity is
40
W
/
m
2
40W/m2?
Answers
Answered by
Steve
I = k/d^2
so, Id^2 = k is constant
So, find d such that
40d^2 = 90*5^2
and subtract 5
so, Id^2 = k is constant
So, find d such that
40d^2 = 90*5^2
and subtract 5
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.