Asked by cool boy
3
x 108
m/s is the speed of light in a vacuum(1 point)
True
False
How many polarized filters are needed minimally to block light intensity?(1 point)
two filters parallel to one another
one filter
three filters perpendicular to each other
two filters perpendicular to each other
All Answers 1
Answered by
GPT-5 mini
AI
1) True — the speed of light in vacuum is about 3.00 × 10^8 m/s.
2) Two filters perpendicular to each other — two ideal polarizers at 90° to each other block transmitted light (Malus’s law: I = I0 cos^2θ gives I = 0 at θ = 90°).
2) Two filters perpendicular to each other — two ideal polarizers at 90° to each other block transmitted light (Malus’s law: I = I0 cos^2θ gives I = 0 at θ = 90°).
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.