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Light of Wave Length $\lambda$ Is Incident on Two Thin Films That Are in Contact

Question 105

Multiple Choice

$Light of wave length \lambda is incident on two thin films that are in contact and surrounded by air. The top layer is \lambda /4 thick and has an index of refraction of 1.33. The bottom layer is \lambda /2 thick and has an index of refraction of 1.50. At normal incidence, the reflected rays that are in phase with each other are A) 1 and 2 B) 1 and 3 C) 2 and 3 D) 1, 2, and 3 E) None of these is correct.$ Light of wave length $\lambda$ is incident on two thin films that are in contact and surrounded by air. The top layer is $\lambda$ /4 thick and has an index of refraction of 1.33. The bottom layer is $\lambda$ /2 thick and has an index of refraction of 1.50. At normal incidence, the reflected rays that are in phase with each other are

A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3
E) None of these is correct.

Light of Wave Length λ\lambdaλ Is Incident on Two Thin Films That Are in Contact

Multiple Choice

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Light of Wave Length $\lambda$ Is Incident on Two Thin Films That Are in Contact

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