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Refractive Index

An object is ...

Question

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

A

behave as a perfect reflector

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B

absorb all light falling on it

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C

have refractive index one

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D

have refractive index exactly matching with that of the surrounding fluid

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Solution

The correct option is D
have refractive index exactly matching with that of the surrounding fluid

It should have refractive index same as the liquid surrounding it.

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