Q(3):A plano-convex lens of diopter power is placed, convex surface down, on an optically flat surface. Using a traveling microscope and sodium light (-589.3 nm). Interference fringes are observed. Determine the radii of the second, third and fourth dark rings.
Q(3):A plano-convex lens of diopter power is placed, convex surface down, on an optically flat surface. Using a traveling microscope and sodium light (-589.3 nm). Interference fringes are observed. Determine the radii of the second, third and fourth dark rings.
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Transcribed Image Text:Q(3):A plano-convex lens of diopter power is placed, convex surface down, on an optically flat surface.
Using a traveling microscope and sodium light (A-589.3 nm). Interference fringes are
observed.
Determine the radii of the second, third and fourth dark rings.
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