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(D) When an object is immersed in a fluid,light rays undergo refraction at the interface of the object and the fluid.If the refractive index of the ob

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Have refractive index exactly matching with that of the surrounding fluid

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(D) When an object is immersed in a fluid,light rays undergo refraction at the interface of the object and the fluid.If the refractive index of the object $(n_1)$ is equal to the refractive index of the surrounding fluid $(n_2)$,then the light rays do not bend or reflect at the interface.As a result,the object becomes invisible because there is no change in the optical path of the light passing through the medium.Therefore,the correct condition is that the refractive index of the object must exactly match that of the surrounding fluid.

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

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