Ray Optics and Optical Instruments

Related Questions

• A lens which has focal length of 4 cm and refractive index of 1.4 is immersed in a liquid of refractive index 1.6, then the focal length will be

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• A given ray of light suffers minimum deviation in an equilateral prism P. Additional prisms Q and R of identical shape and material are now added to P as shown in the figure. The ray will suffer

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• To an observer on the earth the stars appear to twinkle. This can be ascribed to

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