Physics · Ray Optics
An optical fiber has a core refractive index of 1.50 and a cladding refractive index of 1.45. The numerical aperture (NA) of the fiber is approximately:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 10.45
- 20.38✓
- 30.72
- 40.85
Correct answer
0.38
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