Class 12 > Samacheer Kalvi - English Medium > Ray Optics

  • Choose the correct answer

    An air bubble in glass slab of refractive index 1.5 (near normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face. The thickness of the slab is,


    - (a) 8 cm

    - (b) 10 cm

    - (c) 12 cm

    - (d) 16 cm


1 Answer

  • Correct Answer:

    (c) 12 cm

    Answered on 29/10/2020 at 12:40PM by Thamizh

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Unit 6. Ray Optics
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