Asked by John
The intensity of light varies inversely as the square of the distance from its source. If two searchlights are 600 meters apart and one light is 8 times as strong as the other, where should a man cross the line between them in order to be illuminated as little as possible
Answers
Answered by
Tom
I = A/s^2 + 8A/(600-s^2)
where I = illumination, s = distance from A, A is a constant
Take the derivative of I relative to s, set to zero, and solve for s, the distance
where I = illumination, s = distance from A, A is a constant
Take the derivative of I relative to s, set to zero, and solve for s, the distance
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.