Final answer:
False. Light traveling from a denser medium to a less dense medium can experience total internal reflection.
Step-by-step explanation:
False. Light traveling from a denser medium to a less dense medium can experience total internal reflection when the angle of incidence is larger than the critical angle. Total internal reflection occurs when the light is completely reflected back into the denser medium, without any refraction into the less dense medium.
For example, if light is traveling from stale oil (denser medium) to vacuum (less dense medium), it can indeed experience total internal reflection depending on the angle of incidence.
This phenomenon is commonly observed in fiber optics, where light is transmitted through a glass fiber and can undergo total internal reflection at the interface between the fiber and air.