![Calculate the V number of an optical fibre having numerical aperture 0.25 and core diameter 20 m, if its operating wavelength is 1.55 $\mu$m. Calculate the V number of an optical fibre having numerical aperture 0.25 and core diameter 20 m, if its operating wavelength is 1.55 $\mu$m.](https://i.imgur.com/hdOlL5D.png)
Calculate the V number of an optical fibre having numerical aperture 0.25 and core diameter 20 m, if its operating wavelength is 1.55 $\mu$m.
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OpenStax College Physics Solution, Chapter 26, Problem 31 (Problems & Exercises) | OpenStax College Physics Answers
![Collecting Light: The Importance of Numerical Aperture in Microscopy | Science Lab | Leica Microsystems Collecting Light: The Importance of Numerical Aperture in Microscopy | Science Lab | Leica Microsystems](https://www.leica-microsystems.com/fileadmin/academy/user_upload/Angular_aperture_schematic.jpg)
Collecting Light: The Importance of Numerical Aperture in Microscopy | Science Lab | Leica Microsystems
![Numerical Aperture of an Optical fibre | Online Numerical Aperture of an Optical fibre App/Software Converter – CalcTown Numerical Aperture of an Optical fibre | Online Numerical Aperture of an Optical fibre App/Software Converter – CalcTown](https://cdn.calctown.com/optical_fiber_numerical_aperture.png)
Numerical Aperture of an Optical fibre | Online Numerical Aperture of an Optical fibre App/Software Converter – CalcTown
![Calculate the numerical aperture, acceptance angle and the critical angle of the fiber from the following data : n1 = 1.50 and n2 = 1.45. - Civil Engineering With Akhand Dutta Calculate the numerical aperture, acceptance angle and the critical angle of the fiber from the following data : n1 = 1.50 and n2 = 1.45. - Civil Engineering With Akhand Dutta](https://lh3.googleusercontent.com/-vU3sx0idijM/XtYKH9zrnZI/AAAAAAAAArw/8unhgw-RjpAq9o1gJ2TkpZK_DPu4cl2nQCLcBGAsYHQ/w0/1591085585421973-0.png)