6. Structures on a hummingbird feather act like a diffractiongrating having 8000 lines per centimeter. What is the angleof the first-order maximum for 488-nm light?27. When red light illuminates a grating with 7000 lines per centimeter, its second maximum is at62.4°. What is the wavelength of this light?

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6. Structures on a hummingbird feather act like a diffraction grating having 8000 lines per centimeter. What is the angle of the first-order maximum for 488-nm light? 2

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter27: Wave Optics

Section: Chapter Questions

Problem 31PE: Structures on a bird feather act like a reflection grating having 8000 lines per centimeter. What is...

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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.

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6. Structures on a hummingbird feather act like a diffraction
grating having 8000 lines per centimeter. What is the angle
of the first-order maximum for 488-nm light?
2
7. When red light illuminates a grating with 7000 lines per centimeter, its second maximum is at
62.4°. What is the wavelength of this light?

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