The interference pattern created from a diffraction grating with 10 slits is most similar to that of a: a. single slit pattern b. double slit pattern c. thin film pattern d. two of the above e. none of the above

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Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.