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Question: Answered & Verified by Expert
An object is immersed in a fluid. In order that the object becomes invisible, it should
PhysicsRay OpticsAIIMSAIIMS 2004
Options:
  • A behave as a perfect reflector
  • B absorb all light falling on it
  • C have refractive index one
  • D have refractive index exactly matching with that of the surrounding fluid.
Solution:
1434 Upvotes Verified Answer
The correct answer is: have refractive index exactly matching with that of the surrounding fluid.
If the refractive index of two media are same, the surface of separation does not produce refraction or reflection which helps in visibility.

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