2006-11-19 05:36:45 · 4 answers · asked by briancousins@btinternet.com 1 in Science & Mathematics ➔ Physics
a light bult emits the same amout of light in a dark room as it does in a bright room. Your eyes, when adjusted to dark, allow more light in and it seems brighter.
2006-11-19 05:38:48 · answer #1 · answered by DanE 7 · 0⤊ 0⤋
Because the differential between the ambient light and the black body radiation of the dark room is greater than the ambient light of a lighted room. Plus the reflective coeficient of interior walls is greater than a light outside with no close reflective surfaces.
2006-11-19 13:50:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋
it's not, it still weighs the same! It's not Brighter either just the surroundings that are darker so it stands out more
2006-11-19 13:50:14 · answer #3 · answered by dave a 5 · 0⤊ 0⤋
your eyes become more sensitive in the dark, so the lightbulb seems to be brighter.
2006-11-19 16:25:37 · answer #4 · answered by wilde_space 7 · 0⤊ 0⤋