During an observation, it was noticed that light diffracts as it passes through small slits in a barrier. What does this evidence reveal about light?  a It can travel in various wavelengths.  b It can travel through the vacuum of space.  c It demonstrates a behavior of energy.  d It demonstrates a behavior of waves.

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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.