Two thin plano-convex lenses of focal lengthf=m in air, are placed at some distance d from each other as shown in the figure. The space between the lenses are filled with a substance with refractive index u. The distance d between the lenses are so adjusted that a parallel beam of light passing through such an optical system remains parallel. Refractive index of lens (u = }). What is the appropriate relation between µ, d ? air
Two thin plano-convex lenses of focal lengthf=m in air, are placed at some distance d from each other as shown in the figure. The space between the lenses are filled with a substance with refractive index u. The distance d between the lenses are so adjusted that a parallel beam of light passing through such an optical system remains parallel. Refractive index of lens (u = }). What is the appropriate relation between µ, d ? air
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Transcribed Image Text:Two thin plano-convex lenses of focal length f=m in air, are
placed at some distance d from each other as shown in the figure.
The space between the lenses are filled with a substance with
refractive index u. The distance d between the lenses are so
adjusted that a parallel beam of light passing through such an
optical system remains parallel. Refractive index of lens (u =).
What is the appropriate relation between u, d ?
air
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