Get personalized and accurate responses to your questions with IDNLearn.com. Ask anything and receive prompt, well-informed answers from our community of experienced experts.
Answer:
If light enters any substance with a higher refractive index (such as from air into glass) it slows down. The light bends towards the normal line. If light travels enters into a substance with a lower refractive index (such as from water into air) it speeds up. The light bends away from the normal line.