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What If Anything is Wrong Task – Absorption of Light by a Filter.
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What If Anything is Wrong Task – Absorption of Light by a Filter
A student is holding a red and a green filter in front of a bright white light. The light passes through the red filter first. She states:“If I look through the red and green filter at the same time, I will see yellow light since red and green light add together to make yellow light.”
What if anything is wrong with the student’s statement? • Nothing the statement is fine • If you mix red and green paint you get brown not yellow • The light will be red since the green was absorbed by the red filter • The light will be green since it passes through the green filter last • No light will pass through that combination of filters.
Consult with your neighbors. Try to see if you can reach a consensus and then answer again
What if anything is wrong with the student’s statement? • Nothing the statement is fine • If you mix red and green paint you get brown not yellow • The light will be red since the green was absorbed by the red filter • The light will be green since it passes through the green filter last • No light will pass through that combination of filters.