- #1
bobobano
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Homework Statement
A lamp producing 1600 lumens is 16" away from a window of 0.015m^2 on a wall 0.14m^2, what is the amount of light through the window.
Homework Equations
lux = lumens/m^2
The Attempt at a Solution
Since there's no material in the window, shouldn't it be the full 1600 lumens seen inside?