Question

Sort the following objects in descending order based on the amount of light reflected by them.

• Sandpaper
• Coal
• Polished wood
• Glazed tile
• Plane mirror

Answer 1

Plane mirror reflects the most amount of light incident on it. A glazed tile reflects some amount of light, whereas a polished wood reflects a very small amount of light as compared to a glazed tile. A sandpaper has a rough surface and it reflects a minimal amount of light incident on it. Coal on the other hand, absorbs almost all of the light incident on it.