Optics

20 points

1.    List the 7 colors of light, in the correct order from longest to shortest wavelength.  (2 points)

2.    Compare and contrast opaque, translucent and transparent, and give an example of the use of each.  (3 points)

3.    Compare and contrast reflection and refraction (2 points)

4.    Compare and contrast a mirror and a lens.   Use the words reflection and refraction in your answer. (2 points)

5.    Explain diffraction of light.   (1 point)

6.    Compare and contrast a plane mirror, a convex mirror and a concave mirror and give a use of each.  (3 points)

7.    Compare and contrast a convex lens and a concave lens, and give an example of the use of each.  (2 points)

8.    Explain how a fiber optic cable transmits light.  (1 points)

9.    Explain how visible light creates the green of grass.  Use the words pigment, absorb and reflect.  (2 point)

10.  Compare and contrast coherent and incoherent light, and give an example of each.  (2 points)