Angular Width of a Principal Maximum. Consider evenly
Chapter 36, Problem 36.59(choose chapter or problem)
Angular Width of a Principal Maximum. Consider evenly spaced, narrow slits. Use the small-angle approximation (for in radians) to prove the following: For an intensity maximum that occurs at an angle the intensity minima immediately adjacent to this maximum are at angles and so that the angular width of the principal maximum is This is proportional to as we concluded in Section 36.4 on the basis of energy conservation.
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