Ray Optics and Optical Instruments

Related Questions

• An equiconvex lens is cut into two halves along (i) $XOX'$ and (ii) $YOY'$ as shown in the figure. Let $f, f', f''$ be the focal lengths of the complete lens, of each half in case (i), and of each half in case (ii), respectively Choose the correct statement from the following

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• An electron microscope is superior to an optical microscope in

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• A spectrum is formed by a prism of dispersive power $'\omega '$. If the angle of deviation is $'\delta '$, then the angular dispersion is

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• The focal lengths of the objective and eye-lens of a microscope are 1 cm and 5 cm respectively. If the magnifying power for the relaxed eye is 45, then the length of the tube is

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• In Gallilean telescope, the final image formed is

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