Ray Optics and Optical Instruments

Related Questions

• Velocity of light in glass whose refractive index with respect to air is $1.5$ is $2 \times 10^8$ m/s and in certain liquid the velocity of light found to be $2.5 \times 10^8$ m/s. The refractive index of the liquid with respect to air is

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• Given a point source of light, which of the following can produce a parallel beam of light

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• A concave mirror is used to focus the image of a flower on a nearby well $120cm$ from the flower. If a lateral magnification of $16$ is desired, the distance of the flower from the mirror should be

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• Stars are not visible in the day time because

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• Dispersive power depends upon

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