Refraction+of+Light+in+Water

=Unit 2 Optics=

Chapter 1 Optical Systems can make use of Mirrors and Lenses 5.1 The Ray Model of Light

Refraction of Light in Water page 175

When you are reaching into water for an object, the object might not be where you think it is. This illusion is caused by the refraction of light in water. If you were to pick up a penny in a pool of water, it might seem closer to the surface than it really is. Light rays are reflected off the penny and refracted away from the water into the air entering your eye. Your brain tells you that the penny is dirrectly under you ( in a straight line. ) However the light rays bend and cause the penny to appear closer.


 * Questions**                                                                                            ||**Answers**          ||
 * 1. How would an object appear to a human eye looking in the water? || The object would appear straight down from the humans line of vision. ||
 * 2. Where is the object really? || The object is really farther away, and in a more diagonal place according to a human's line on vision. ||
 * 3. What are th light rays doing as they go from the object to your eyes? || The light rays are bending away from the normal as they hit the air, making the object seem closer than it is. ||
 * 3. What are th light rays doing as they go from the object to your eyes? || The light rays are bending away from the normal as they hit the air, making the object seem closer than it is. ||
 * 3. What are th light rays doing as they go from the object to your eyes? || The light rays are bending away from the normal as they hit the air, making the object seem closer than it is. ||