ENEM 2017 - Em uma linha de transmissão de informações por fibra óptica, quando um sinal diminui su

(ENEM 2017) In a fiber optic information transmission line, when a signal decreases its intensity to values ​​below 10 dB, it needs to be retransmitted. However, intensities above 100 dB cannot be transmitted adequately. The figure shows how signal loss (optical loss) occurs for different wavelengths in a certain type of optical fiber. What is the maximum distance, in km, that a signal can be sent through this fiber without requiring retransmission? A) 6 B) 18 C) 60 D) 90 E) 100 ================== Did you like the video? Like, subscribe and share. If you want to learn Physics with me from ZERO to ENEM, access the website ✅ https://go.fisiquei.com.br/campaign/f... and learn about my course. Follow me on social media for more Physics content: 👉  / thalesquirino   Share this video: 👉   • ENEM 2017 -  Em uma linha de transmissão d...   Check out the complete playlist of ENEM 2017 solutions: 👉   • ENEM 2017 - Dispositivos eletrônicos que u...   Professor Thales Quirino Medeiros ================== #ENEM #physics #answerkey #enemanswerkey #bluebooklet #physics #science #naturalsciences #solution #comments #studies #approval #class #professor #nature #naturalsciences #fiberoptics #opticalloss #retransmission #totalreflection #graph