Light Waves and Eyes

Front

What is the first part of the eye that light hits?

Back

Cornea

Front

What is a vacuum?

Back

A space with NO matter at all present.

Front

Which color of visible light has the longest wavelength?

Back

Red

Front

What shows all wavelengths of light?

Back

Electromagnetic spectrum

Front

What type of EM wave shows a break in bones?

Back

X-ray

Front

What is the function of the lens in the eye?

Back

To focus light onto the retina.

Front

What is the visible spectrum?

Back

The range of light wavelengths that can be seen by the human eye.

Front

What is the role of the retina?

Back

To convert light into neural signals for the brain.

Front

What is refraction?

Back

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

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second.