Questions

 

The intensity of a light is 24 candles. If the light is 2 feet away from a table, what is the illumination at the table?
4 foot-candle
24 foot candle
6 food candle
20 foot candle

 

The illumination of a light bulb 3 feet away is 45 foot-candles. What is the intensity of the light bulb?
5 Candles
9 Candles
15 Candles
135 Candles

 

A glow stick with an intensity of 98 Candles, has an illumination of 3 Candle-feet when held a certain distance away. What is this distance?
4 feet
5 feet
6 feet
7 feet

 

General illumination in your house requires about how many candle feet?
10
5
25
100

 

When the distance from an object is doubled, its illumination will:
half
double
quarter
quadruple