Ray Optics and Optical Instruments

Related Questions

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

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• How much water should be filled in a container 21 cm in height, so that it appears half filled when viewed from the top of the container (given that $_{a}{{\mu }_{\omega }}=4/3$)

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• An object of length 6 cm is placed on the principle axis of a concave mirror of focal length f at a distance of 4f. The length of the image will be

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• Absolute refractive indices of glass and water are $\frac{3}{2}$ and $\frac{4}{3}$. The ratio of velocity of light in glass and water will be

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• The length of a telescope is 36 cm. The focal lengths of its lenses can be

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