Ray Optics and Optical Instruments

Related Questions

• A glass lens is placed in a medium in which it is found to behave like a glass plate. Refractive index of the medium will be

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• A concave mirror of focal length 15 cm forms an image having twice the linear dimensions of the object. The position of the object when the image is virtual will be

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• We use flint glass prism to disperse polychromatic light because light of different colours

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• Radius of curvature of concave mirror is $40cm$ and the size of image is twice as that of object, then the object distance is

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• We combined a convex lens of focal length $f_1$ and concave lens of focal lengths $f_2$ and their combined focal length was $F$. The combination of these lenses will behave like a concave lens, if

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