Ray Optics and Optical Instruments

Related Questions

• A photograph of the moon was taken with telescope. Later on, it was found that a housefly was sitting on the objective lens of the telescope. In photograph

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• The wavelength of light in air and some other medium are respectively ${{\lambda }_{a}}$ and ${{\lambda }_{m}}.$ The refractive index of medium is

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• A point object is placed at a distance of 30 cm from a convex mirror of focal length 30cm. The image will form at

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• A lens of power + 2 diopters is placed in contact with a lens of power – 1 diopoter. The combination will behave like

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• Ray optics fails when

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