Ray Optics and Optical Instruments

Related Questions

• Continuous spectrum is not due to

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• Light rays from a source are incident on a glass prism of index of refraction $\mu $ and angle of prism $\alpha $. At near normal incidence, the angle of deviation of the emerging rays is

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• A double convex lens $({{R}_{1}}={{R}_{2}}=10\,cm)$ $(\mu =1.5)$ having focal length equal to the focal length of a concave mirror. The radius of curvature of the concave mirror is

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• The true statement is

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• A lens which has focal length of 4 cm and refractive index of 1.4 is immersed in a liquid of refractive index 1.6, then the focal length will be

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