Ray Optics and Optical Instruments

Related Questions

• An imaginary line joining the optical centre of the eye lens and the yellow point is called as

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• The light ray is incidence at angle of 60° on a prism of angle 45°. When the light ray falls on the other surface at 90°, the refractive index of the material of prism $\mu $ and the angle of deviation $\delta $ are given by

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• A thin oil layer floats on water. A ray of light making an angle of incidence of 40° shines on oil layer. The angle of refraction of light ray in water is (${{\mu }_{oil}}=1.45,\,{{\mu }_{water}}=1.33$)

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• The focal lengths of convex lens for red and blue light are 100 cm and 96.8 cm respectively. The dispersive power of material of lens is

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• The focal length of a concave mirror is $50cm.$ Where an object be placed so that its image is two times and inverted

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