Ray Optics and Optical Instruments

Related Questions

• The refractive index of a prism for a monochromatic wave is $\sqrt{2}$ and its refracting angle is 60°. For minimum deviation, the angle of incidence will be

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• A normally incident ray reflected at an angle of ${{90}^{o}}$. The value of critical angle is

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• What is the time taken (in seconds) to cross a glass of thickness $4 mm$ and $\mu $= 3 by light

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• The angle of minimum deviation measured with a prism is 30° and the angle of prism is 60°. The refractive index of prism material is

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• The focal lengths of the objective and eye-piece of a telescope are respectively 100 cm and 2 cm. The moon subtends an angle of ${{0.5}^{o}}\,$at the eye. If it is looked through the telescope, the angle subtended by the moon's image will be

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