True or false: optics

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   The angle of reflection equals the angle of incidence.

2. Statement is true

   Yes

   Statement

   Refraction happens when light passes from one medium into another.

3. Statement is true

   No

   Statement

   Total internal reflection happens below the critical angle.

4. Statement is true

   Yes

   Statement

   Dispersion splits white light into a spectrum of colours.

Instructions

Decide whether each statement about light is true or false.

Explanation