Ray Optics and Optical Instruments

Related Questions

• When light of wavelength $\lambda $ is incident on an equilateral prism kept in its minimum deviation position, it is found that the angle of deviation equals the angle of the prism itself. The refractive index of the material of the prism for the wavelength $\lambda $ is, then

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• A man standing in a swimming pool looks at a stone lying at the bottom. The depth of the swimming pool is h. At what distance from the surface of water is the image of the stone formed (Line of vision is normal; Refractive index of water is n)

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• The refractive index of a particular material is 1.67 for blue light, 1.65 for yellow light and 1.63 for red light. The dispersive power of the material is .........

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• A normally incident ray reflected at an angle of ${{90}^{o}}$. The value of critical angle is

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• In a compound microscope cross-wires are fixed at the point

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