Understanding Mirrors

What is the primary reason smooth surfaces can reflect images back to us?

• They change the color of light.

• They bounce light back at the same angle.

• They scatter light in all directions.

• They absorb light completely.

What material were the earliest known mirrors made from?

• Obsidian

• Silver

• Aluminum

• Polished copper

Which civilization is credited with inventing modern mirrors by coating glass with tin and mercury?

• Ancient Egyptians

• Venetians

• Greeks

• Romans

What materials are used in the manufacturing of modern mirrors?

• Tin and mercury

• Gold and copper

• Bronze and brass

• Silver or aluminum

What makes modern mirrors less of an art compared to earlier times?

• They require frequent polishing.

• They use rare materials.

• They are made by hand.

• They are produced with factory precision.