Magnesium fluoride (n = 1.38) is frequently used as a lens coating to make nonreflecting lenses. What is the difference in the minimum film thickness required for maximum transmission of blue light (λ = 400 nm)and of red light (λ = 700 nm)?
Answer to relevant QuestionsIn the development of Young’s double-slit experiment, a small-angle approximation (tan θ ≈ sin θ) was used to find the lateral displacements of the maxima (bright) and minima (dark) positions. How good is this ...An air wedge such as that shown in Fig. 24.30 can be used to measure small dimensions, such as the diameter of a thin wire. (a) If the top glass plate is illuminated with monochromatic light, the interference pattern ...At what angle will the second-order maximum be seen from a diffraction grating of spacing 1.25 μm when illuminated by light of wavelength 550 nm? (a) Only a limited number of maxima can be observed with a diffraction grating. The factor(s) that limit(s) the number of maxima seen is (are) (a) (1) the wave-length, (2) the grating spacing, (3) both. Explain. (b) How ...Un polarized light is incident on a polarizer–analyzer pair that can have their transmission axes at an angle of either 30o or 45o. (a) The angle will allow (1) more, (2) the same, or (3) less light to go through. (b) ...
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