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MHT CET202411 May 2024Morning ShiftPhysicsRay OpticsActual

When the same monochromatic ray of light travels through glass slab and through water, the number of waves in glass slab of thickness 5 cm is same as in water column of height 6 cm . If refractive index of glass is 1.56 , then refractive index of water is

Options

  1. A1.28
  2. B1.29
  3. C1.30
  4. D1.32

Correct answer

C. 1.30

Step-by-step solution

Given: N _ g = N _ w But number of waves N= d ; where d = thickness of the medium array ll & d_g _g = d_w _w & But _ g = _ air _ g and _w= _ air _w & _ g d_g= _ w d_w & _ w = _ g d_g d_w = 1.56 5 6 =1.30 array

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