Optics Crossword

A type of optical telescope that uses a lens as its objective to form an image.
Is an optical telescope which uses curved mirrors that reflect light and form an image.
The _____lens in a telescope focuses the light to a point in front of the eyepiece.
Another word for nearsightedness
Images are formed behind the retina, not on it, and this causes close-up images to be blurry.
The most common cause of blindness
The pupil gets____in bright light.
The aqueous humour is the ____fluid, that fills the front part of the eyeball.
The ___ spot is where the optic nerve leaves the retina.
The coloured part of the eye.
The _____body is a circular muscle that enables the lens to change shape for focusing.
The _____is a layer of blood vessels that nourishes the eye.
With refraction of light no image is formed when the object is at the_____point.
A lens that makes light rays come together is called a _____lens.
These lenses make light spread apart.
A _____and dark-coloured surface will absorb light the most.
Concave mirrors are also called _________mirrors
Your image will be upright, but much smaller than what you normally see in this kind of mirror.
The ability to let light rays in.
Light can partially get through..
Allows no light to get through.
,Light can travel in a straight line just like _____.
When the sunlight passes from the air through rain droplets before reaching your eyes, what is this called?
Different _______of light have different wavelengths.
Where does the energy of the electromagnetic spectrum come from?
,As the wavelength gets shorter, both the frequency and energy _______.
Which rays are the highest forms of electromagnetic radiation?
Waves where the particles of the medium vibrate with an up and down motion.
What is the branch of science called that deals with the study of waves that travel through the Earth?
What kind of wave can you see on the water on a windy day?