SOLUTION: The intensity I of light varies inversely as the sqaure of the distance D from the source. If the intensity of illumination on a screen 5ft from a light is 4 foot candles, find the
Algebra.Com
Question 797491: The intensity I of light varies inversely as the sqaure of the distance D from the source. If the intensity of illumination on a screen 5ft from a light is 4 foot candles, find the intensity on a screen 20ft from the light.
Please help
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The intensity I of light varies inversely as the square of the distance D from the source.
If the intensity of illumination on a screen 5 ft from a light is 4 foot candles,
let k = constant, then I =
Find K
= 4
k = 25*4
k = 100
:
find the intensity on a screen 20ft from the light.
I =
I =
I = foot candle
RELATED QUESTIONS
The intensity 1, of light received from a source varies inversely as the square of the... (answered by josgarithmetic)
the intensity of light, l, received at a source varies inversely as the square of the the (answered by DrBeeee)
The intensity of a light varies inversely as the square of the distance from the light... (answered by ewatrrr)
The intensity of light received from a source varies inversely as the square of the... (answered by Fombitz)
The intensity of light varies inversely as the square of the distance from the light... (answered by Alan3354)
The intensity of light varies inversely a the square of the distance from the light... (answered by stanbon)
The intensity, I, of light received from a source varies inversely as the square of the... (answered by fractalier)
The intensity, I, of light received fro a source varies inversely as the square of the... (answered by josgarithmetic)
The intensity, I, of light received at a source varies inversely as the square of... (answered by jorel1380)