Birdwatch Note Rating
2024-03-26 11:52:36 UTC - NOT_HELPFUL
Rated by Participant: 27FC13756A60731C88DA74E228100719B4A73ED9105E5CE56112A20703947AD8
Participant Details
Original Note:
Speed of light depends on the material it passes through. It can be calculated by dividing vacuum speed of light by refraction index. In case of optic fiber, refraction index is about 1.4682, therefore the speed is calculated like: 299,792,458 m/s / 1.4682 = 204,190,477m/s. https://web.phys.ksu.edu/posters/2009/juma-Adv-Lab-S09.pdf https://www.quora.com/What-is-precisely-the-speed-of-light-in-fiber-optics https://www.genuinemodules.com/how-to-calculate-the-speed-of-light-in-an-optical-fibre_a2976
All Note Details