Carefully analyses the diagram and choose the correct option :

814-22

  • A

    $i$ and $ii$ are true

  • B

    $i$ and $iii$ are true

  • C

    $i$ and $iv$ are true

  • D

    $ii$ and $ii$ are true

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A parallel beam of light strikes a piece of transparent glass having cross section as shown in the figure below. Correct shape of the emergent wavefront will be (figures are schematic and not drawn to scale)-

  • [IIT 2020]