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The maximum angle to the axis at which light may enter the fiber in order to be propagated is referred to as:

The maximum angle to the axis at which light may enter the fiber in order to be propagated is referred to as: Correct Answer acceptance angle

CONCEPT:

  • Optical fibres are transparent fibers and act as a light pipe to transmit light between its two ends. They are made up of silicon dioxide.

 

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  • The total internal reflection occurs when the angle of incidence is greater than the critical angle.

 

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  • In optical fibre glasses of a high and lower index are assembled in the precise order.
  • The light comes in from one end of the fibre and after thousands of successive internal reflections, the light reaches the opposite end of the fiber with almost zero loss. 

 

EXPLANATION:

Acceptance Angle:

  • The maximum angle of incidence at the entrance aperture of the fiber for which the light ray suffers total internal reflection at the core-cladding interface and propagates through the fiber is called the acceptance angle.
  • Sine of the acceptor angle of the optical fiber, measures the light gathering or accepting power of the fiber.

 

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So, the correct option is for light gathering power is dependent on Acceptance angle.

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