Ray Optics and Optical Instruments

Related Questions

• Consider the following two statements A and B and identify the correct choice in the given answers A : Line spectra is due to atoms in gaseous stateB : Band spectra is due to molecules

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• A thin convex lens of focal length 10 cm is placed in contact with a concave lens of same material and of same focal length. The focal length of combination will be

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• A ray of light travelling inside a rectangular glass block of refractive index $\sqrt{2}$ is incident on the glass–air surface at an angle of incidence of 45°. The refractive index of air is 1. Under these conditions the ray

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• Substance on the choroid is

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• An astronomical telescope has objective and eye-piece lens of powers 0.5 D and 20 D respectively, its magnifying power will be

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