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Question: 

Coherent light from a laser diode is emitted through a rectangular area $3.0 \; \mu \textrm{m} \times 1.5 \; \mu \textrm{m}$ (horizontal-byvertical). If the laser light has a wavelength of 780 nm, determine the angle between the first diffraction minima

  1. above and below the central maximum,
  2. to the left and right of the central maximum.

Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014. Reprinted by permission of Pearson Education Inc., New York.
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Quick Answer: 
  1. $63^\circ$
  2. $30^\circ$

Giancoli 7th Edition, Chapter 24, Problem 30

(3:13)

Chapter 24, Problem 30 is solved.

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