Question

From which of the following surfaces, diffused reflection will be the highest?

• A. Shaving mirror
• B. Still water in lake
• C. Thin sheet of aluminium
• D. Cardboard

Answer 1

The correct option is D Cardboard

When the light rays strike a rough surface it deviates at different angles. This is known as diffused reflection. So mirror of any sort is a very smooth surface, and the lake is also very smooth and even surface so the reflection will be regular in this case as well. Cardboard comparatively has tiny holes and unevenness, it can be considered rougher than the other options.