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QJEEAdv07Ph9ad2: JEE Advanced 2007 Physics - Class 12 JEEAdv07Ph9ad2 Solution: Light travels as a

Light travels as a

Multiple Choice Options

  • A parallel beam in each medium
  • B convergent beam in each medium
  • C divergent beam in each medium
  • D divergent beam in one medium and convergent beam in the other medium.

Step-by-Step Verified Solution

Since the wave fronts are parallel in each medium, the beam is also a parallel beam travelling in the direction perpendicular to the wave fronts. Since the beam would bend inside medium 2 when travelling from medium 1 , the second medium has the higher refractive index.

Trick : For plane wave fronts the beam of light is parallel.

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