Ray Optics and Optical Instruments

Related Questions

• The respective angles of the flint and crown glass prisms are $A’$ and $A$. They are to be used for dispersion without deviation, then the ratio of their angles $A’ /A$ will be

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• A candle placed 25 cm from a lens, forms an image on a screen placed 75 cm on the other end of the lens. The focal length and type of the lens should be

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• A prism of refracting angle $60^o$ is made with a material of refractive index $\mu$. For a certain wavelength of light, the angle of minimum deviation is $30^o$. For this, wavelength the value of refractive index of the material is

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• Myopia is due to

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• The band spectra (characteristic of molecular species) is due to emission of radiation

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