Which statement regarding Young’s double slit experiment is incorrect? a) The separation of the nodal lines is dependent on the wavelength of the light b) It furher demonstrates that light and matter have particle and wave behaviours c) It requires the use of monochromatic and coherent light d) Light waves leaving the two slits have a fixed phase e) The interference pattern from this experiment has a nodal line down the centre of the light f) The particle theory was unable to give a satisfactory explanation of this phenomenon g) Diffraction of light occurs at both slits

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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.