Ray Optics and Optical Instruments

Related Questions

• 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 ray of light is incident on a transparent glass slab of refractive index 1.62. The reflected and the refracted rays are mutually perpendicular. The angle of incidence is

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• The length of a telescope is 36 cm. The focal lengths of its lenses can be

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• The wavelength of light in two liquids ‘x' and ‘y' is 3500 Å and 7000 Å, then the critical angle of x relative to y will be

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• The magnifying power of an astronomical telescope for relaxed vision is 16. On adjusting, the distance between the objective and eye lens is 34 cm. Then the focal length of objective and eye lens will be respectively

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