Question

ᴀɴꜱᴡᴇʀ ᴛʜᴇ ꜰᴏʟʟᴏᴡɪɴɢ Qᴜᴇꜱᴛɪᴏɴ​

Answer 1

Answer:

C. optical fibres are subjected to electromagnetic interference from outside.

${ \huge{ \purple{ \textsf{false}}}}$

Explanation:

all the other options :

• a) Optical fibres have homogeneousCore
• b) Optic fibres have graded refractive index
• d) Optic fibres have extremely low transmission loss

are true

and the option c is false as the electromagnetic interference is a noise

# mark it as the BRAINLIEST

# thank toh kardo bhai

Answer 2

Here's your answer!

• Optical Fibres are used in telephone wires or we can say, telecommunication network.

• Optical Fibres prevent loss of signals going through it.

• a) They are thin fibres which are closely arranged with particular coating around them, or cladding.

• b) By grading refractive index this has to say - the n decreases as the distance of cladded material from core increases.

• c) As said, it prevents loss of signal, so this option is incorrect.

• d) Yes, they have extremely low transmisson loss, as mentioned in point (c).

Hope it helps!