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Light travels in a straight line (rectilinear propagation of light). This statement does hold if the medium of travel for light is
  • a)
    of variable refractive index
  • b)
    made up of slabs of different refractive indices
  • c)
    homogeneous and transparent
  • d)
    inhomogeneous and transparent
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Light travels in a straight line (rectilinear propagation of light). T...
  • Light travels in straight lines. Once the light has been produced, it will keep traveling in a straight line until it hits something else.
  • The refractive index of a material is a measure of the change in the speed of light as it passes from a vacuum (or air as an approximation) into the material.
  • Light changes speed as it passes from one medium to another. Light will only travel in straight line if the medium is homogeneous and transparent
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Light travels in a straight line (rectilinear propagation of light). This statement does hold if the medium of travel for light isa)of variable refractive indexb)made up of slabs of different refractive indicesc)homogeneous and transparentd)inhomogeneous and transparentCorrect answer is option 'C'. Can you explain this answer?
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