MCQ
Optical path is equal to :
- ✓Refractive index $\times$ path-length
- BRefractive index/path-length
- CPath-length/refractive index
- DRefractive index $\times \frac{\text { path-length }}{2}$
✓
Answer
Correct option: A.
Refractive index $\times$ path-length
A
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