PS refraction, lens equation, optics, color, light

Front

What type of lenses correct farsighted vision?

Back

Converging lenses allow light rays to focus on the retina.

Front

What condition may result from an eyeball being too long?

Back

Myopia (nearsightedness) occurs when the eyeball is too long.

Front

Where is a virtual image located?

Back

A virtual image is located behind the mirror.

Front

What is the key to a hidden mirror?

Back

No light source on the hidden side allows the mirror to be hidden.

Front

What is the darkest part of a shadow called?

Back

The darkest part of a shadow is called the umbra.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another.

Front

What is the lens equation?

Back

The lens equation is 1/f = 1/do + 1/di, where f is the focal length, do is the object distance, and di is the image distance.

Front

What is the difference between myopia and hyperopia?

Back

Myopia (nearsightedness) is when distant objects appear blurry, while hyperopia (farsightedness) is when close objects appear blurry.

Front

What is a real image?

Back

A real image is formed when light rays converge and can be projected on a screen.

Front

What is a concave lens?

Back

A concave lens is a diverging lens that spreads out light rays.