Ray Optics and Optical Instruments

Related Questions

• The sun's diameter is $1.4\times {{10}^{9}}m$ and its distance from the earth is ${{10}^{11}}m.$ The diameter of its image, formed by a convex lens of focal length $2\,m$will be

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• The far point of a myopia eye is at 40 cm. For removing this defect, the power of lens required will be

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• In the formation of primary rainbow, the sunlight rays emerge at minimum deviation from rain-drop after

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• A converging lens is used to form an image on a screen. When upper half of the lens is covered by an opaque screen

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• If in compound microscope $m_1$ and $m_2$ be the linear magnification of the objective lens and eye lens respectively, then magnifying power of the compound microscope will be

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