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