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Chapter 35, Problem 29P

(II) The normal lens on a 35-mm camera has a focal length of 50.0 mm. Its aperture diameter varies from a maximum of 25 mm (f/2) to a minimum of 3.0 mm (f/16). Determine the resolution limit set by diffraction for (f/2) and (f/16). Specify as the number of lines per millimeter resolved on the detector or film. Take λ = 560 nm.

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The normal lens on a 35-mm camera has a focal lengthof 50.0 mm. Its aperture diameter varies from a maximumof 25 mm (f/ 2) to a minimum of 3.0 mm ( f/16). Determinethe resolution limit set by diffraction for ( f/2) and ( f/16).Specify as the number of lines per millimeter resolved onthe detector or film. Take λ=560nm
(II) Two first-order spectrum lines are measured by a 9650-slit/cm spectroscope at angles, on each side of center, of +26°38', +41°02' and -26°18', -40°27'. Calculate the wavelengths based on these data.
(i) Derive the expression for a critical incident angle and a mumerical aperture for a given step indexed fiber. (ii) Calculate the critical propagation angle and critical incident angle of an optical fiber of core refractive index, n = 1.52 and cladding refractive index n2 1.50. Given that the fiber is kept in %3D water.

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Modified Mastering Physics without Pearson eText-- Instant Access -- for Physics for Scientists & Engineers with Modern Physics

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