How do rays bend when they are incident on a curved surface ?

What happens to a ray that is incident on a curved surface separating the two media ? Are the laws of refraction still valid ?

Do all materials produce sound when they dropped on hard surface?

What happens to the light ray when a transparent material with two curved surfaces is placed in its path ?

How does the plant shoot bend, when the plant is placed in a room having only one open window ?

Are the angle of reflection and angle of incidence also equal for reflection by curved surfaces ?

Unpolarised light is incident on a plane glass surface. What should be the angle of incidence so that the reflected and refracted rays are perpendicular to each other?