Ray Optics and Optical Instruments

Related Questions

• Deviation of 5° is observed from a prism whose angle is small and whose refractive index is 1.5. The angle of prism is

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• A lens is placed between a source of light and a wall. It forms images of area ${{A}_{1}}$ and ${{A}_{2}}$ on the wall for its two different positions. The area of the source or light is

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• A person suffering from hypermetropia requires which type of spectacle lenses

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• In a compound microscope, the intermediate image is

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• Two thin lenses of focal lengths 20 cm and 25 cm are placed in contact convex. The effective power of the combination is

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