We wish to coat flat glass (n = 1.50) with a transparent material (n = 1.29) so that reflection of light at wavelength 541 nm is eliminat by interference. What minimum thickness can the coating have to do this? Number Units

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Q: How many electrons must be removed from a neutral object to leave a net charge of Q2 = 1.7 µC?

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Diffraction of light

In physics, the term diffraction is defined as the bending of light around the corners of the obstacle. As a light ray passes by an aperture, it bends around the edges or through slits, it spreads out through a narrow opening. The diffracted light will produce fringes of bright and dark or colored bands which are labeled as a diffraction pattern.