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Warming up on Interference

This assignment is due before 9 AM, Wednesday, November 7th, 2007.

Please type your last name and first initial (e.g., Rader, A):

Please type a nickname: (in case your answer gets used in class).


The following questions refer to the material you were to read in preparation to the lesson.

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT HOMEWORK button at the bottom of this page.

WarmUp assignments are worth 4 points each. They are graded for effort.




1.

In your own words, please explain what is meant by the term interference. When is interference destructive? When is it constructive?





2.

Without using a caculator, estimate the value of sin(0.015) and tan(0.015) where the angle is in radians. Be sure to explain how you did this without a calculator.



3.

In young's two-slit experiment, the two lits act as two sources of light which interfere with one another. Please explain what he two sources are when you see "interference" in the light reflected from an oil slick or soap bubble



4.

When two rays of light are out of phase by 180°, destructive interference results. What happens at 170°? Anything?



Below is a space for your thoughts, including general comments about today's assignment. What was hard or confusing (or cool)? What would you like to spend extra time on in class? Do you see how this subject fits in with the others we have discussed?




You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button.



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