Question

Name two factors that affect the critical angle for a given pair of media. State how the factors affect it.

Answer 1

1. These elements influence the critical angle of the pair of media:
   (i) Effect of color: The critical angle increases as the wavelength of light increases.
   (ii) Effect of temperature: As temperature rises, the critical angle increases.
2. The critical angle is greatest for a medium with a low refractive index and lowest for a medium with a high refractive index.
3. Thus, the critical angle is inversely proportional to the refractive index of the given media.