The diagram shows a ray of light travelling in air and striking a glass block. Part of the light is refracted and part is reflected. The diagram labels two angles, $p$ and $q$. Which row identifies the angle of incidence and states whether total internal reflection occurs?
- Aangle of incidence: $p$; total internal reflection: no
- Bangle of incidence: $p$; total internal reflection: yes
- Cangle of incidence: $q$; total internal reflection: no
- Dangle of incidence: $q$; total internal reflection: yes