The Intensity I of Light Varies Inversely as the Square $\frac { 2 } { 9 }$

Multiple Choice

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 2 foot-candles, find the intensity on a screen 15 ft from the light.

A) $\frac { 2 } { 9 }$ foot-candle
B) $\frac { 2 } { 10 }$ foot-candle
C) $1 \frac { 2 } { 9 }$ foot-candles
D) 2 foot-candles