The Eyes Have It
Into A Mirror Darkly
Man Made
Reflecting on Refraction
Check Your Sources
100
This structure, part of the retina, is responsible for detecting colour. The Mantis Shrimp has many more of them than a human.
What is a cone?
100
The angle of reflectance is always equal to this.
What is the angle of incidence?
100
A telescope uses a long, wide tube to allow more light and also for this reason.
What is increased magnification?
100
A concave lens corrects near-sightedness by causing light to do this before it enters the eye.
What is diverge?
100
The glowing red burner on your stove is producing this kind of light.
What is incandescent?
200
The lenses in the eyes of this creature move back and forth to focus, operating in a similar fashion to a camera.
What is an octopus?
200
This is the property of a fibre optic cable that prevents light from being absorbed, allowing it to travel the length of the cable, around bends.
What is a reflective coating?
200
A solar oven works by coverting radiant energy into this type of energy.
What is thermal?
200
This type of telescope uses a convex objective lens and a second lens called an eyepiece lens.
What is a refracting telescope?
200
The glow sticks everyone likes to wave around at youth dances produce this type of light.
What is chemoluminescent.
300
The diaphragm in a camera performs a similar function to this component of the human eye.
What is the iris?
300
At the point where the angle of incidence and angle of reflectance meet, there is this corresponding line that runs at 90 degrees to the plane of the mirror.
What is 'normal'?
300
When you look through a lens and it does not flip the object image upside down, you can deduce that it is this type of lens.
What is concave?
300
A microscope uses a pair of these type of lenses to produce extreme magnification?
What are convex?
300
Fireflies and certain types of fish produce this type of light.
What is bioluminescent?
400
If person's eyeballs are too long and the object image forms in front of their retina, they are said to be...
What is near sighted.
400
The passenger side mirrors on most cars allow a person to view a wider than normal area. They also reflect an image is right side up. From this we can deduce that they are this type of mirror.
What is convex?
400
Binoculars reproduce the magnification of telescopes by using these to bounce light back and forth in a short tube.
What are prisms?
400
This arrangement of mirrors will almost always reflect a light source back to, or near to, its point of origin.
What is perpendicular, or at right angles?
400
Twisty bulbs produce this kind of light.
What is fluorescent?
500
The image that falls on the retina of the human eyeball is actually upside down, but we don't notice this because our brain automatically corrects this for us. The object image appearing upside down tells us that our eyeball incorporates this type of lens.
What is convex? (Curving outwards.)
500
A reflecting telescope contains this type of mirror.
What is a concave mirror?
500
A laser emits this type of light.
What is coherent?
500
When light travels from air into a more dense medium like a water, it bends ________ the normal.
What is 'towards'? (This principal is demonstrated by how we can 'see' the sun in the sky before it has actually risen above the horizon. The light rays refract when they enter Earth's atmosphere, which is more dense than space.)
500
Greenish paint is applied to watch faces and absorbs light, emitting it again slowly, making it this type of light source.
What is phosphorescent?
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