Reflection
This is what the light ray is called once it bounces off a mirror.
reflected ray
True or False: The angle of incidence of a light ray is equal to the angle of refraction
false
This part of the electromagnetic spectrum is what we can see.
The visible spectrum
When reading a book in a dark room, these are the cells responsible for most of your vision.
Rods
This word is used to describe materials that transmit light.
Transparent
This is the light ray that first hits the mirror
incident ray
What type of lens brings rays of light together?
Convex (converging)
What colour of visible light has the lowest energy?
Red
This is the part of the eye that focuses an image onto the retina.
The lens
This vision problem is caused by an irregularity of the cornea.
Astigmatism
What type of mirror is able to bring rays of light together?
Concave mirror (converging)
Which has a higher refractive index: air or water?
This type of electromagnetic radiation is responsible for the sunburns we experience when we're in the sun too long.
UV radiation
This is the coloured part of a human eye. It is also what controls how much light enters the eye.
Iris
This word describes what happens to light if it hits an object and is neither reflected, refracted, or transmitted.
Absorption
90 degrees
When light travels from water to air, which direction does it bend?
Away from the normal line
This type of electromagnetic radiation has slightly higher frequencies than ultraviolet.
X-rays
This is the part of the retina that connects to the optic nerve
Blind spot
This word describes cells that can absorb light and send a signal to the brain.
Photoreceptors
What type of reflection is currently happening on your desk?
Diffuse refraction
What is the name of the number associated with substances to describe how much the bend light?
Index of refraction
Gamma rays have the ________ wavelength, the ________ energy, and the _________ frequency of any electromagnetic radiation.
shortest (or smallest), highest, highest
What is it called when a person's eye is slightly too long, leading to distant objects appearing blurry.
This word refers to light that is produced by living things.
Bioluminescence