Ray Optics and Optical Instruments

Related Questions

• Angle of a prism is 30° and its refractive index is $\sqrt{2}$ and one of the surface is silvered. At what angle of incidence, a ray should be incident on one surface so that after reflection from the silvered surface, it retraces its path

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• A convex lens forms a real image of an object for its two different positions on a screen. If height of the image in both the cases be 8 cm and 2 cm, then height of the object is

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• When light travels from air to water and from water to glass, again from glass to $C{{O}_{2}}$ gas and finally through air. The relation between their refractive indices will be given by

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• A achromatic combination is made with a lens of focal length $f$ and dispersive power $\omega $ with a lens having dispersive power of $2\omega $. The focal length of second will be

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• The refractive indices of violet and red light are 1.54 and 1.52 respectively. If the angle of prism is 10°, then the angular dispersion is

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