Ray Optics and Optical Instruments

Related Questions

• Monochromatic light is refracted from air into the glass of refractive index $\mu $. The ratio of the wavelength of incident and refracted waves is

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• Critical angle of light passing from glass to air is minimum for

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• A double convex thin lens made of glass (refractive index $\mu = 1.5$) has both radii of curvature of magnitude $20 cm$. Incident light rays parallel to the axis of the lens will converge at a distance $L$ such that

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• A man can see only between 75 cm and 200 cm. The power of lens to correct the near point will be

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• If the refractive indices of crown glass for red, yellow and violet colours are 1.5140, 1.5170 and 1.5318 respectively and for flint glass these are 1.6434, 1.6499 and 1.6852 respectively, then the dispersive powers for crown and flint glass are respectively

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