Homework Due Friday March 18 - happy now Riya???!!!

Answer the following questions from the "Light" documents:
Don't forget to post a comment saying you've started working on the questions and another comment when you finish the questions.

31) Explain: “As a model, think of bundles of light rays entering your eye, which enable you to see the tree from any angle because different bundles of reflected rays will enter your eye from different parts of the tree.”

32) Explain the difference between the direction reflected light takes from smooth surfaces and rough surfaces.

33) Write the “Law of Reflection.”

34) What are “diverging rays”?

35) Explain what a virtual image is in your own words (don’t copy from the book).

36) Describe the difference between concave and convex mirrors.

37) What happens when light travels from one medium to another? Give one to two sentences of a detailed answer.

38) Why are light rays refracted?

 Read the Quantum Theory 2 and 3 documents and take a minimum of 2 pages of notes.

Answer the following questions about the Quantum Theory docs:

1) Explain the quote by Richard Feynman on the very first page of the Quantum Theory 2.  Give an example of something which doesn’t produce the same results given the same conditions.

(p. 15)

2) What is a protogalaxy? (p. 15)

3) What is feeble light? (p. 15)

4) Explain: “tiny particles of light raining down on the telescope’s detectors from the very depths of space.”  What are the particles and where did they come from? (p. 15)

5) What does it mean for astronomers to be “straining to see the weakest sources of light from the universe”? (p. 15)