You want a telescope that discerns objects that are at least 5.10 * 10-7 radians apart. To achieve this resolution, determine what the diameter of the primary mirror must be if you are making observations at a wavelength of 583 nm. A binary star system is 41.3 ly away. the two stars would just barely be able to be discerned by your telescope. determine the minimum distance between the stars. ly = 9.461 *1015

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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.