What Could Have Made the Intensity Pattern Shown on a Screen

question 72

Multiple Choice

What could have made the intensity pattern shown on a screen D meters away (d is slit spacing,b is slit width and $\lambda$ is wavelength) ?

• A)a double slit with D\(\lambda\)/d = 1 cm
• B)single slit with D\(\lambda\)/b = 1 cm
• C)single slit with D\(\lambda\)/b = 2 cm
• D)diffraction grating with D\(\lambda\)/d = 1 cm
• E)single slit with D\(\lambda\)/b = 0.5 cm

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