Ray Optics and Optical Instruments

Related Questions

• Which one of the following alternative is FALSE for a prism placed in a position of minimum deviation

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• A plane mirror makes an angle of $30^\circ $ with horizontal. If a vertical ray strikes the mirror, find the angle between mirror and reflected ray

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• At what distance from a convex lens of focal length 30 cm, an object should be placed so that the size of the image be 1/2 of the object

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• A convex lens has 9 cm focal length and a concave lens has – 18 cm focal length. The focal length of the combination in contact will be

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• If the focal length of a double convex lens for red light is ${{f}_{R}},$ its focal length for the violet light is

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