Answer:
The constant 2.2 in L(D) represent the brightness in lumens per square inch.
Step-by-step explanation:
Given : The intensity of a light in lumens is the product of the brightness in lumens per square inch and the surface area of the sphere with a radius equal to the distance to the source in inches the function can be used to represent a particular lights intensity.
To find : What does the constant 2.2 in L(D) represent ?
Solution :
The intensity of a light in lumens is the product of the brightness in lumens per square inch and the surface area of the sphere with a radius equal to the distance to the source in inches.
The function given is is the product of two terms,
On comparing with statement,
The intensity of a light in lumens is L(D).
The brightness in lumens per square inch is 2.2.
The surface area of the sphere with a radius equal to the distance to the source in inches is
Therefore, the constant 2.2 in L(D) represent the brightness in lumens per square inch.