When the amount of incident light is equal to the amount of transmitted light physically it mean that there is no absorption and 100% of light is transmitted.
What does absorption and transmission of light mean?
Transmission – when light that passes through a substance.
- For transparent substance – visible light is transmitted easily and objects are seen clearly.
- For translucent substance – some visible light is transmitted, but some is scattered (or diffused) so that objects are not clearly seen.
Absorption –when light energy hit a surface and converted to heat energy.
- Dark or black objects absorb more light and feel hotter than lighter or white objects.
- Objects that do not transmit or reflect much visible light, absorb it, thus, the object appears opaque (you can't see through it).
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