Question:
Pick out the correct statements about optical fibres from the following
S1: Optical fibres are used for the transmission of optical signals only.
S2: Optical fibres are used for transmitting and receiving electrical signals
S3: The intensity of light signals sent through optical fibres suffer very small loss
S4: Optical fibres effectively employ the principle of multiple total internal reflections
S5: Optical fibres are glass fibres coated with a thin layer of a material with lower refractive index
Options :
Answer :
(d) S2, S3, S4 and S5
Answer Steps :
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