A thin film of oil (n1.33)1.46) is floating on a water surface (nand is illuminated from above by monochromatic light ( 540 nm).For what thickness of the oil film will the reflected light be bright?==

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A thin film of oil (n 1.46) is floating on a water surface (n = 1.33) and is illuminated from above by monochromatic light (λ = 540 nm). For what thickness of the oil film will the reflected light be bright? =

A thin film of oil (n 1.46) is floating on a water surface (n = 1.33) and is illuminated from above by monochromatic light (λ = 540 nm). For what thickness of the oil film will the reflected light be bright? =

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter26: Electromagnetism

Section: Chapter Questions

Problem 69A

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Concept explainers

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.

Question

A thin film of oil (n
1.33)
1.46) is floating on a water surface (n
and is illuminated from above by monochromatic light ( 540 nm).
For what thickness of the oil film will the reflected light be bright?
=
=

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