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Light of wavelength is normally incident on some plane optical device. The intensity pattern shown is observed on a distant screen (θ is the angle measured from the normal of the device). The device could be:
A. a single slit of width W
B. a single slit of width 2W
C. two narrow slits with separation W
D. two narrow slits with separation 2W
E. a diffraction grating with slit separation W
Light of wavelength is normally incident on some plane optical device. The intensity pattern shown is observed on a distant screen (θ is the angle measured from the normal of the device). The device could be:
A. a single slit of width W
B. a single slit of width 2W
C. two narrow slits with separation W
D. two narrow slits with separation 2W
E. a diffraction grating with slit separation W
A. a single slit of width W