Ray Optics and Optical Instruments

Related Questions

• The sun's diameter is $1.4\times {{10}^{9}}m$ and its distance from the earth is ${{10}^{11}}m.$ The diameter of its image, formed by a convex lens of focal length $2\,m$will be

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• A transparent cube of 15 cm edge contains a small air bubble. Its apparent depth when viewed through one face is 6 cm and when viewed through the opposite face is 4 cm. Then the refractive index of the material of the cube is

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• A combination of two thin convex lenses of focal length 0.3 m and 0.1 m will have minimum spherical and chromatic aberrations if the distance between them is

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• Focal length of a converging lens in air is R. If it is dipped in water of refractive index 1.33, then its focal length will be around (Refractive index of lens material is 1.5)

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• A ray of monochromatic light suffers minimum deviation of ${{38}^{o}}$ while passing through a prism of refracting angle ${{60}^{o}}$. Refractive index of the prism material is

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