Ray Optics and Optical Instruments

Related Questions

• The focal lengths of convex lens for red and blue light are 100 cm and 96.8 cm respectively. The dispersive power of material of lens is

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• The phenomena of total internal reflection is seen when angle of incidence is

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• A biconvex lens forms a real image of an object placed perpendicular to its principal axis. Suppose the radii of curvature of the lens tend to infinity. Then the image would

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• The magnifying power of a simple microscope is 6. The focal length of its lens in metres will be, if least distance of distinct vision is 25$cm$

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• The separation between two microscopic particles is measured ${{P}_{A}}$ and ${{P}_{B}}$ by two different lights of wavelength 2000 Å and 3000 Å respectively, then

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