Ray Optics and Optical Instruments

Related Questions

• The chromatic Aberration in lenses becomes due to

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• Two lenses have focal lengths ${{f}_{1}}$ and ${{f}_{2}}$ and their dispersive powers are ${{\omega }_{1}}$ and ${{\omega }_{2}}$ respectively. They will together form an achromatic combination if

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• Stars are not visible in the day time because

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• The fine powder of a coloured glass is seen as

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• A prism of refractive index $\mu$ and angle A is placed in the minimum deviation position. If the angle of minimum deviation is A, then the value of A in terms of $\mu$ is

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