science
Grade6
Easy
Question
A mirror reflects 99.9% of the light that falls on it, as it has a highly ___ and ____ surface.
- Rough, polished
- Smooth, polished
- Slippery, smooth
- Smooth, frictionless
Hint:
The surface of the mirror feels like being touched.
The correct answer is: Smooth, polished
- A mirror has a reflective surface (that is, a coating) on the viewing side or front surface of the glass facing the incident light. Mirror coatings are typically upgraded aluminum, protected gold, or silver.
- A mirror has a smooth and polished surface and reflects light at a certain angle. Light is scattered when it reflects off a rough surface.
- The mirror image can be captured with the instrument and recorded on video.
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