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Question: 

What is the highest spectral order that can be seen if a grating with 6500 slits per cm is illuminated with 633-nm laser light? Assume normal incidence.

Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.

Quick Answer: 

$m_{max} = 2$

Giancoli 7th Edition, Chapter 24, Problem 41

(1:20)

Chapter 24, Problem 41 is solved.

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