Front

What is diffused reflection?

Back

Diffused reflection occurs when light hits a rough or uneven surface, scattering the light in many directions.

Front

What happens to light when it refracts?

Back

When light refracts, it bends toward or away from the line of 'normal' depending on the medium it enters.

Front

What is the line of 'normal' in optics?

Back

The line of 'normal' is an imaginary line perpendicular to the surface at the point of incidence where light strikes.

Front

What is an electromagnetic wave?

Back

An electromagnetic wave is a transverse wave that consists of electric and magnetic fields oscillating perpendicular to each other and does not require a medium to travel.

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

Which color of visible light has the greatest frequency?

Back

Violet has the greatest frequency in the visible light spectrum.

Front

What is the difference between a longitudinal wave and a transverse wave?

Back

A longitudinal wave oscillates parallel to the direction of travel, while a transverse wave oscillates perpendicular to the direction of travel.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s).

Front

What is refraction?

Back

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

Front

What is the angle of incidence?

Back

The angle of incidence is the angle between the incident ray and the normal line at the point of incidence.