One style of solar collector panel for hot water consists of a sheet of glas on top, a sheet of black metal on the bottom and the water flowing between. Describe the steps of what happens to the sunlight striking sucl a panel. Use the words reflect, absorb, transparent and opaque in your answer.

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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.