Behavior of Light

Front

What is light composed of?

Back

Light is composed of photons.

Front

What is the relationship between the angles of incidence and reflection when light strikes a flat mirror?

Back

The angles of incidence and reflection are equal.

Front

What happens to light when it passes from a material with a lower speed to a material with a higher speed?

Back

It is bent away from the normal to the surface.

Front

If a light ray strikes a flat mirror at an angle of 27° from the normal, what is the angle of the reflected ray from the normal?

Back

The reflected ray will be 27° from the normal.

Front

What path will a light ray most likely follow after striking a lens?

Back

The light ray will most likely follow path C.

Front

Define the term 'normal' in the context of light behavior.

Back

The normal is an imaginary line perpendicular to the surface at the point of incidence.

Front

What is the law of reflection?

Back

The law of reflection states that the angle of incidence is equal to the angle of reflection.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another due to a change in speed.

Front

What is the critical angle?

Back

The critical angle is the angle of incidence above which total internal reflection occurs.

Front

What is total internal reflection?

Back

Total internal reflection is the phenomenon where light is completely reflected back into a medium when it hits the boundary at an angle greater than the critical angle.