Physics, 04.11.2019 21:31, akemble8862

Perhaps to confuse a predator, some tropical gyrinid beetles (whirligig beetles) are colored by optical interference that is due to scales whose alignment forms a diffraction grating (which scatters light instead of transmitting it). when the incident light rays are perpendicular to the grating, the angle between the first-order maxima (on opposite sides of the zeroth-order maximum) is about 27° in light with a wavelength of 534 nm. what is the grating spacing of the beetle?

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Perhaps to confuse a predator, some tropical gyrinid beetles (whirligig beetles) are colored by opti...