Answer the following questions:
1.
Define reflection. Draw ray diagrams to explain it
Answers
Answer:
Reflection is the bouncing back of some phenomenon in the same medium after striking a surface.
Answer:
ray diagram shows how light travels, including what happens when it reaches a surface. In a ray diagram, you draw each ray as:
a straight line
with an arrowhead pointing in the direction that the light travels
Remember to use a ruler and a sharp pencil.
The law of reflection
When light reaches a mirror, it reflects off the surface of the mirror:
the incident ray is the light going towards the mirror
the reflected ray is the light coming away from the mirror
A ray diagram showing angle of incidence and angle of reflection.
A ray diagram for reflection at a mirror
In the ray diagram:
the hatched vertical line on the right represents the mirror
the dashed line is called the normal, drawn at 90° to the surface of the mirror
the angle of incidence, i, is the angle between the normal and incident ray
the angle of reflection, r, is the angle between the normal and reflected ray
The law of reflection states that the angle of incidence equals the angle of reflection, i = r. It works for any angle. For example:
the angle of reflection is 30° if the angle of incidence is 30°
the angle of reflection is 90° if the angle of incidence is 90°
In the second example, if a light ray
