Eyes and Sight
The outermost lens of the eye. It regulates and focuses light coming into the eye.
What is the cornea?
This lens causes the ray of light passing through it to diverge or bend away from its axis.
What is a concave lens?
What is refraction?
Light is refracted as it enters water since it is a denser medium than light; the light actually moves slower.
Why do objects appear different when they are in water compared to air?
This part of the body changes the focal distance of the eye,
What is the lens?
Rays of light passing through this lens converge or bend towards its axis.
What are convex lens?
A change in direction of a light wave as it reaches the boundary of a different medium.
What is reflection?
This phenomenon occurs when light radiated from the sun moves through water droplets in clouds. The water droplets disperse the sunlight into the seven colors of the spectrum.
This layer of the eye that receives light from the lens and converts it into signals to send to the brain.
What is the retina?
Rays of light will refract and then diverge upon exit of this lens, never intersecting.
What are double concave lens?
The transfer of energy fro a wave to matter as it passes through it .
What is absorption?
The line drawn perpendicular to a reflective surface at the point of incidence.
What is a normal line?
This condition causes the eye to be unable to process parallel input rays because they do not intersect at the retina.
What is far-sightedness?
Rays of light will converge upon entry and then travel parallel to the principal axis as they move through this lens.
What are double convex lens?
The passage of electromagnetic radiation through a medium.
What is transmission?
These types of glasses push back the focal point of the rays to meet the retina.
What are far-sighted glasses?
Rays that go through this lens will exhibit similar behavior to when they go through double concave lens, however with a shorter focal length.
What are plano-concave lens?
The spreading of white light into its full color spectrum.
What is dispersion?