S1 In multimode fiber optics intensity modulating schemes can be employed...

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S1: In multimode fiber optics, intensity modulating schemes can be employed.
S2: Schemes using polarizing techniques need birefringent fiber.

A. S1 is true and S2 is false

B. Both S1 and S2 are true

C. S1 is false and S2 is true

D. Both S1 and S2 are false

Answer: Option B

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