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(II) Two (and only two) full spectral orders can be seen

Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli ISBN: 9780130606204 3

Solution for problem 35P Chapter 24

Physics: Principles with Applications | 6th Edition

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Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli

Physics: Principles with Applications | 6th Edition

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Problem 35P

(II) Two (and only two) full spectral orders can be seen on either side of the central maximum when white light is sent through a diffraction grating. What is the maximum number of slits per cm for the grating?

Step-by-Step Solution:

Step-by-step solution

Step 1 of 2</p>

The white light is used. The white light lises range of wavelengths from 4000A0 to 7000A0. The red light spread  the widest violet spread the smallest. So two fully spectral orders of red light fills the screen completely.

m=2

λ=7000A0 

θ is the spreading angle.

         

         

The maximum value that the sinθ can take in maximum spreading is 1

         

         

Step 2 of 2

Chapter 24, Problem 35P is Solved
Textbook: Physics: Principles with Applications
Edition: 6
Author: Douglas C. Giancoli
ISBN: 9780130606204

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(II) Two (and only two) full spectral orders can be seen

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