The walls of a soap bubble have about the same index of refraction as that of pl

ID: 1509104 • Letter: T

Question

The walls of a soap bubble have about the same index of refraction as that of plain water, n=1.33. There is air both inside and outside the bubble

Part A

What wavelength (in air) of visible light is most strongly reflected from a point on a soap bubble where its wall is 292 nm thick?

Part B

To what color does this correspond? To what color does this correspond? green blue red orange

Part C

What wavelength (in air) of visible light is most strongly reflected from a point on a soap bubble where its wall is 341 nm nm thick?

Part D

To what color does this correspond? To what color does this correspond? green orange blue red

A)
2 n t = (m +1/2) lambda, with n = 1.33 and t = 292 nm. For m = 0 that gives lambda =1553.44 nm

b) Red

C)
2 n t = (m +1/2) lambda, with n = 1.33 and t = 341 nm. For m = 0 that gives lambda =1814.12 nm

d) Red

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