Ray Optics and Optical Instruments

Related Questions

• The black lines in the solar spectrum during solar eclipse can be explained by

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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 glass convex lens $({{\mu }_{g}}=1.5)$ has a focal length of $8\,cm$ when placed in air. What would be the focal length of the lens when it is immersed in water ( ${{\mu }_{w}}=1.33$)

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• A ray of light passes through an equilateral glass prism in such a manner that the angle of incidence is equal to the angle of emergence and each of these angles is equal to 3/4 of the angle of the prism. The angle of deviation is

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• The radius of curvature for a convex lens is $40 cm$, for each surface. Its refractive index is $1.5$. The focal length will be

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