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KCET2012PhysicsRay Optics

A monochromatic beam of light is travelling from medium A of refractive index n₁ to a medium B of refractive index n ₂ . In the medium A , there are x number of waves in certain distance. In the medium B, there are y number of waves in the same distance. Then, refractive index of medium A with respect to medium B is

Options

  1. Ax y
  2. By x
  3. Cx y
  4. Dx y-x

Correct answer

A. x y

Step-by-step solution

If x number of waves of wavelength ₁ and y number of waves of wavelength ₂ are present in same distance s, then array ll & s = x ₁= y ₂ or x y = ₂ ₁ = n ₁ n ₂ & n ₁ n ₂ = x y array

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