Ray Optics and Optical Instruments

Related Questions

• 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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• Two convex lenses of focal lengths 0.3 m and 0.05 m are used to make a telescope. The distance kept between the two is

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• In the figure, an air lens of radii of curvature 10 cm (${{R}_{1}}$ = ${{R}_{2}}$ = 10 cm) is cut in a cylinder of glass$(\mu =1.5)$. The focal length and the nature of the lens is

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• Which of the following could not produce a virtual image

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• Spherical aberration in a lens

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