Ray Optics and Optical Instruments

Related Questions

• Three prisms 1, 2 and 3 have the prism angle $A = 60^o$, but their refractive indices are respectively 1.4, 1.5 and 1.6. If $\delta _1, \delta _2, \delta _3$ be their respective angles of deviation then

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• The refractive index of water is $1.33$. The direction in which a man under water should look to see the setting sun is

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• An astronomical telescope has a magnifying power 10. The focal length of eyepiece is 20 cm. The focal length of objective is

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• In a compound microscope the objective of ${{f}_{o}}$ and eyepiece of ${{f}_{e}}$ are placed at distance L such that L equals

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• The angular resolution of a 10 cm diameter telescope at a wavelength of 5000 Å is of the order

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