Multiple choice

When an object is placed between two parallel mirrors, the number of images formed will be ____.

  1. two

  2. eight

  3. thirty two

  4. infinite

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

When an object is placed between two parallel mirrors, light bounces back and forth infinitely. Each reflection becomes a new object for the next reflection, creating theoretically infinite images. In practice, images become progressively dimmer due to absorption at each reflection.