PhysicsLAB Practice Problems
Colored Lights

Directions: On this worksheet you will examine the color of the petals and leaves of a rose illuminated with different frequencies of light.


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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