• XEAL@lemm.ee
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      10 months ago

      Let’s define “more”.

      Yeah, we’re not troll sciencing light out of nowhere, but if the lamp is next to a mirror instead of a wall, the room will have more illumination, because the mirror is reflecting the light emitted by the lamp better than a wall will do.

      • diverging@lemmy.ml
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        10 months ago

        the mirror is reflecting the light emitted by the lamp better than a wall will do.

        Will it? Maybe. You are making the assumption that specular reflection is better at reflecting than diffuse reflection, but that is a false assumption. It depends on the reflectivity of the wall and the mirror. A white wall can reflect more light than a mirror.