- #1
ginnerpip
- 4
- 0
Hey guys (and girls)
I've got a rather annoying question.
If you were given the radiant power (45 mW) and luminous flux (22 l), and then was told it was spread uniformly spread over a hemisphere. (a) how do find the luminous intensity??, (b) the illuminance 1.8m away, and (c) illumance 5.0 cm straing out, and 3.0cm to the side.
The first questioj is really annoying me, any help??
Thanks
I've got a rather annoying question.
If you were given the radiant power (45 mW) and luminous flux (22 l), and then was told it was spread uniformly spread over a hemisphere. (a) how do find the luminous intensity??, (b) the illuminance 1.8m away, and (c) illumance 5.0 cm straing out, and 3.0cm to the side.
The first questioj is really annoying me, any help??
Thanks