Which of the following statements about total internal reflection is correct?
- ATotal internal reflection occurs when light is incident on a glass to air boundary at an angle of incidence greater than the critical angle.
- BTotal internal reflection occurs when light is incident on a glass to air boundary at an angle of incidence less than the critical angle.
- CTotal internal reflection occurs when light is incident on an air to glass boundary at an angle of incidence greater than the critical angle.
- DTotal internal reflection occurs when light is incident on an air to glass boundary at an angle of incidence less than the critical angle.