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How Wide Must a Narrow Slit Be If the First $\pm$

Question 70

Multiple Choice

How wide must a narrow slit be if the first diffraction minimum occurs at $\pm$ 12 $\degree$ with laser light of 633 nm?

A) 3.0 *10 ^- ⁶ m
B) 3.0* 10 ^- ⁵ m
C) 6.1 * 10 ^- ⁶ m
D) 6 .1* 10 ^- ⁵ m
E) 1.5 *10 ^- ⁶ m

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