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Q. |
How does the refractive index vary in Graded Index fibre? |
A. | tangentially |
B. | radially |
C. | longitudinally |
D. | transversely |
Answer» B. radially | |
Explanation: the refractive index of the core is maximum along the fibre axis and it gradually decreases. here the refractive index varies radially from the axis of the fibre. |
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