2.4 Irradience Flashcards
1
Q
Irradiance
A
The amount of energy incident on every square metre of surface per second
2
Q
Equation to find Irradiance
A
I = P
ㅤ—-
ㅤ A
3
Q
How to find constant
A
Id² = constant
Id² = Id²
4
Q
What happens to Irradiance when Distance doubles
A
Irradiance Quarters (÷4)
5
Q
What happens to Irradiance when Distance Halfs
A
Irradiances Quadriples (x4)
6
Q
Point Source
A
Radiates light equally in all directions
7
Q
Equation to find Power
A
P =ㅤE
ㅤㅤ —
ㅤㅤ T
8
Q
Equation to find Energy
A
E = hf
9
Q
What unit is irradiance measured in
A
w/m²
