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$Light of wavelength 410 nm (in vacuum) is incident on a diffraction grating that has a slit separation of 1.2 ×10^-5 m . The distance between the grating and the viewing screen is 0.15 m . A diffraction pattern is produced on the screen that consists of a central bright fringe and higher-order bright fringes (see the drawing). (a) Determine the distance y from the central bright fringe to the second-order bright fringe. (Hint: The diffraction angles are small enough that the approximation tanθ≈s$

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$SOLVED:A beam of 541-nm light is incident on a diffraction grating that has 400 grooves / mm (a) Determine the ang of the second-order ray. (b) What If? If the entire apparatus is immersed in water, what is the new second-order angle of diffraction? (c) Show that the two diffracted rays of parts (a) and (b) are related through the law of refraction.$

SOLVED:A beam of 541-nm light is incident on a diffraction grating th…

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