OU NanoLab/NSF NUE/Bumm & Johnson
Lambert’s Law
Example
•If one slab of absorbing material of thickness l reduces the
intensity of a beam of light to half.
α
I0
I
l
•And three slabs will reduce the intensity of a beam of light to one eight.
•Then two slabs of the same absorbing material will then reduce the
intensity of a beam of light
to one quarter.
α
I0
I
l
α
l
α
I
l
α
l
α
I0
l