Multiple choice

Which of the given metals is a good reflector of light?

  1. Iron

  2. Silver

  3. Copper

  4. Sodium

  5. Potassium

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Of all the metals, untarnished silver is the best reflector of light. As a result it was used in ancient times to make mirrors. Unfortunately, silver tarnishes very easily and quickly.