Q143 / 180 · AIIMS 2004 · Physics

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

  • A
    behave as a perfect reflector
  • B
    absorb all light falling on it
  • C
    have refractive index one
  • Correct answer
    D
    have refractive index exactly matching with that of the surrounding fluid.

Solution

If the refractive index of two media are same, the surface of separation does not produce refraction or reflection which helps in visibility.

Hence, the correct answer is option: 'D'.

Relevant Questions