Light makes objects visible and travels in straight lines. When light hits an opaque object, it cannot pass through; however, it can reflect off surfaces. The laws of reflection state that the angle of incidence equals the angle of reflection, with incident and reflected rays, along with the normal, lying in the same plane.

1. LIGHT

2. Light makes things visible

3. Light travels in a straight line
( rectilinear propagation of light)

4. What happens if an opaque object is
kept in the path of the light?

5. What is reflection?
•The returning of light in the same medium after
striking a surface, is called reflection of light

6. Plane mirror

7. Terms related to reflection of light

8. Laws of reflection of light
•The angle of incidence is always equal to the angle of
reflection
•The incident ray, the reflected ray and the normal, all
lie in the same plane