Question

100 POINTS HELP!!!!

Answer 1

Step-by-step explanation:

E = P/A

when light is moved, P is the same n A goes up. So E goes down with the light angle

Answer 2

Step-by-step explanation:

P as light energy per second is more commonly called Power.

E, Irradiance, is defined as P/A where A is the illuminated area; it is also more commonly called as Intensity.

As the light angle increases, P remains constant but A, the illuminated area, increases. So E, Irradiance, will decrease.