Two Slits Are Illuminated with Red Light $\lambda$ = 650 Nm)The Slits Are 0

question 39

Multiple Choice

Two slits are illuminated with red light ( $\lambda$ = 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

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