A witness sees a clean window but finds no reflections on its surface. The window is intact and clean. How is this possible?
Category: Mystery · Difficulty: expert
Hint: Consider materials that alter light behavior.
Answer
Window coated with anti-reflective film
Explanation
Anti-reflective coatings reduce reflections, making the surface appear without glare or mirrored images.
This is a expert mystery riddle — one of the harder riddles here. The answer is Window coated with anti-reflective film.
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