Optical Fiber Hard
Optical fiber guides light mainly by:
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About This Question
- Subject
- physics
- Chapter
- optics
- Topic
- optical fiber hard
- Difficulty
- Hard
- Year
- 2025
Solution
Correct Answer:
Total internal reflection
An Optical Fiber consists of a core of higher refractive index surrounded by a cladding of lower refractive index.
- Light entering the core at a small angle hits the core-cladding interface at an angle greater than the critical angle.
- It undergoes repeated Total Internal Reflection (TIR), traveling long distances with minimal loss even if the fiber is bent.
This hard difficulty physics question is from the chapter optics, covering the topic of optical fiber hard. It appeared in the 2025 exam.
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