Question

what is the other name for maximum external incidence angle

Answer 1

Wave guide acceptance angle.

Explanation :

Only this rays which pass within the acceptance angle will be totally reflected.

Therefore, light incident on the core within the maximum external incident angle can be coupled into the fibre to propagate.

This angle is known as wave guide acceptance angle.

Answer 2

HEY HERE IS YOUR ANSWER......

Wave guide acceptance angle.

Explanation:-

On this rays which pass within the acceptance angle will be totally reflected.

Therefore, light incident on the core within the maximum external incident angle can be coupled into the fibre to propagate.

This angle is known as wave guide acceptance angle.

HOPE IT HELPS......