Optics Test Review

Front

What is the focal point in optics?

Back

The point where light rays converge after passing through a lens.

Front

How do Electromagnetic (EM) waves differ from Mechanical waves?

Back

EM waves can travel through the vacuum of space without needing a medium.

Front

What happens to a light ray when it moves from water to air?

Back

It refracts, changing direction due to the difference in density.

Front

What is an example of refraction?

Back

A fish bowl bending light waves and distorting an image.

Front

What characterizes a real image?

Back

A real image is produced by real rays and can be projected on a screen.

Front

What is refraction?

Back

The bending of light as it passes from one medium to another.

Front

What is reflection in optics?

Back

The bouncing back of light rays when they hit a reflective surface.

Front

What is the difference between a real image and a virtual image?

Back

A real image can be projected on a screen, while a virtual image cannot.

Front

What is the law of reflection?

Back

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

Front

What is total internal reflection?

Back

The complete reflection of light back into a medium when it hits the boundary at a steep angle.