Ray Optics and Optical Instruments

Related Questions

• The focal lengths for violet, green and red light rays are ${{f}_{V}},{{f}_{G}}$and ${{f}_{R}}$ respectively. Which of the following is the true relationship

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• The refractive indices of glass and water w.r.t. air are 3/2 and 4/3 respectively. The refractive index of glass w.r.t. water will be

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• The focal length of a concave mirror is f and the distance from the object to the principle focus is x. The ratio of the size of the image to the size of the object is

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• The focal length of a convex mirror is 20 cm its radius of curvature will be

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• A reflecting telescope utilizes

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