Ray Optics and Optical Instruments

Related Questions

• A man of length h requires a mirror, to see his own complete image of length at least equal to

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• If $F_o$ and $F_e$ are the focal length of the objective and eye-piece respectively of a telescope, then its magnifying power will be

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• 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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• For a medium, refractive indices for violet, red and yellow are 1.62, 1.52 and 1.55 respectively, then dispersive power of medium will be

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• A convex lens forms a real image of an object for its two different positions on a screen. If height of the image in both the cases be 8 cm and 2 cm, then height of the object is

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