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139 To examine the diffraction pattern produced by a plane beam of monochromatic light, with a wavelength of 450 nm, a converging lens is used
139 To examine the diffraction pattern produced by a plane beam of monochromatic light, with a wavelength of 450 nm, a converging lens is used which focuses the image on a screen. The focal length of the lens is 1.2m. The diffraction grating used has a pitch of 0.012 mm. At what distance from the central light fringe will the first lateral light fringes be produced?
139 .. Per esaminare la figura di diffrazione prodotta da un fascio piano di luce monocromatica, con lunghezza d'onda 450 nm, si usa una lente convergente che mette a fuoco l'immagine su uno schermo. La distanza focale della lente vale 1,2 m. Il reticolo di diffrazione usato ha un passo di 0,012 mm. a a . A quale distanza dalla frangia luminosa centrale si produrranno le prime frange luminose laterali? [4,5 cm]Step by Step Solution
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