A Soap Bubble (N = 1

question 62

Multiple Choice

A soap bubble (n = 1.35) is floating in air.If the thickness of the bubble wall is 300 nm,which of the following wavelengths of visible light is strongly reflected?

• A)620 nm (red)
• B)580 nm (yellow)
• C)540 nm (green)
• D)500 nm (blue)

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