Two slits are illuminated with red light (2= 650 nm). The slits are 0.25 mm apart and the distance to the screen is 1.25 m. What fraction of the maximum intensity on the screen is the intensity measured at a distance 3.0 mm from the central maximum? a. 0.94 b. 0.92 c. 0.96 d. 0.98 e. 0.99 ANS: A PTS: 3 DIF: Challenging
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I already know the answer to this practice problem, and it is shown is the image. I do not know how to get to the answer though, so seeing the steps and equations would be much appreciated.
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