Ray Optics and Optical Instruments

Related Questions

• Two lenses of power +12 and – 2 diopters are placed in contact. What will the focal length of combination

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• Least distance of distinct vision is 25 cm. Magnifying power of simple microscope of focal length 5 cm is

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• An opera glass (Gallilean telescope) measures 9 cm from the objective to the eyepiece. The focal length of the objective is 15 cm. Its magnifying power is

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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 lens behaves as a converging lens in air and a diverging lens in water. The refractive index of the material is

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