$AB$ is a boundary separating two media of different refractive indices. $A$ ray is incident on the boundary and is partially reflected and partially transmitted. Choose the $\text{CORRECT}$ statement.

  • A
    $3$ is incident ray and $1$ is refracted ray
  • B
    $2$ is incident ray and $1$ is partially reflected ray
  • C
    $1$ is incident ray and $3$ is refracted ray
  • D
    $3$ is incident ray and $2$ is partially reflected ray

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