Ray Optics and Optical Instruments

Related Questions

• An object is immersed in a fluid. In order that the object becomes invisible, it should

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• The frequency of a light ray is $6\times {{10}^{14}}Hz.$Its frequency when it propagates in a medium of refractive index $1.5$, will be

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• A convex lens of crown glass ($ =1.525$) will behave as a divergent lens if immersed in

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• In a plano-convex lens the radius of curvature of the convex lens is 10 cm. If the plane side is polished, then the focal length will be (Refractive index = 1.5)

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• A double convex lens is made of glass of refractive index 1.5. If its focal length is 30 cm, then radius of curvature of each of its curved surface is

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