Ray Optics and Optical Instruments

Related Questions

• An object is placed at a distance of 20 cm from a convex lens of focal length 10 cm. The image is formed on the other side of the lens at a distance

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• A mark at the bottom of a liquid appears to rise by 0.1 m. The depth of the liquid is 1 m. The refractive index of the liquid is

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• To remove myopia (short sightedness) a lens of power 0.66 D is required. The distant point of the eye is approximately

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• To increase the magnifying power of telescope ($f_o$ = focal length of the objective and $f_e$ = focal length of the eye lens)

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• A person cannot see objects clearly beyond 2.0 m. The power of lens required to correct his vision will be

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