Waves, Light, Sight & Sound (25)

Front

What is the retina?

Back

The retina is a layer at the back of the eye that contains light-sensitive cells (rods and cones) that convert light into nerve impulses.

Front

What is the function of the optic nerve?

Back

The optic nerve transmits visual information from the retina to the brain for interpretation.

Front

What is refraction in the context of light?

Back

Refraction is the bending of light waves as they pass through different mediums, such as air to water or through the eye's cornea and lens.

Front

What is the cornea?

Back

The cornea is the transparent front part of the eye that covers the iris and pupil, helping to focus light.

Front

What is the lens of the eye?

Back

The lens is a transparent structure behind the cornea that further focuses light onto the retina.

Front

What are rods and cones?

Back

Rods are photoreceptor cells in the retina that detect light intensity and are responsible for night vision. Cones detect color and are responsible for daylight vision.

Front

What is the difference between rods and cones?

Back

Rods are sensitive to low light and do not detect color, while cones require more light and are responsible for color vision.

Front

What is the role of the brain in vision?

Back

The brain interprets the nerve impulses received from the optic nerve to create the images we see.

Front

What are gamma rays?

Back

Gamma rays are a form of electromagnetic radiation with very high energy, often described as destructive due to their ability to penetrate materials.

Front

What is light?

Back

Light is a form of energy that travels in waves and can be seen by the human eye.