I1= 100sin (750t+45) A I2=50sin (500t-30) A U=200sin (750t-90) V Plot the waves of the three of current and voltage, whose equations are as above, on a single graph. Take  π=3  and find the frequencies.  The graphic should

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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.