PhysicsLAB Practice Problems
Colored Lights
Topics: On this worksheet you will examine the color of the petals and leaves of a rose illuminated with different frequencies of light.

Page Directions The numerical values in this worksheet are randomly generated allowing students the opportunity to conveniently practice, and drill, common situations.

Before beginning any given worksheet, please look over all of the questions and make sure that there are no duplicate answers shown for the same question. If duplicates are present simply refresh the page until every answer is unique.

In order to check an answer (even when you are just starting the worksheet on Question 1) it is necessary to omit any questions that you have not answered. Once you start submitting answers, the page may be checked as many times as necesasary without changing the randomized answers. Relevant scoring will be provided at the top of the page only when you answer all of the questions on your original submission.


Question 1  Suppose a yellow rose that has green leaves in white light is now illuminated with red light. What color would its petals now be?
Question 2  What color will the leaves of the rose in Question 1 be?
Question 3  If the yellow rose in Question #1 is now illuminated with cyan light. What color would the rose petals now be?
Question 4  What color will the leaves now be in Question 3?
Question 5  If the yellow rose in Question #1 is now illuminated with magenta light, what color are its petals?
Question 6  Which portion of the rose in Question #5 would be warmer?
Question 7  Which portion of the rose in Question #1 would be warmer?
Question 8  Which portion of the rose in Question #3 would be warmer?
Question 9  What color light would need to illuminates the rose in Question #1 for both the petals and the leaves to be black?


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