Optics: Reflection-Mirrors; Total Internal Reflection

Front

What happens to light during total internal reflection?

Back

The angle of incidence is greater than the critical angle.

Front

If a person is 10 cm away from a plane mirror, how far away are they from their virtual image?

Back

20 cm.

Front

Fiber optic cables work because of the principle of _____?

Back

total internal reflection.

Front

If the angle of incidence is 80°, what is the angle of reflection?

Back

80°.

Front

What type of image is formed by a converging mirror when it is upright and larger?

Back

Virtual image.

Front

Define total internal reflection.

Back

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

Front

What is the critical angle?

Back

The minimum angle of incidence at which total internal reflection occurs.

Front

What is the relationship between angle of incidence and angle of reflection?

Back

The angle of incidence is equal to the angle of reflection.

Front

What type of mirror is used to produce a virtual image?

Back

Concave mirror.

Front

What is a plane mirror?

Back

A flat mirror that reflects light to form a virtual image that is the same size as the object.