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Propagation of Waves

If μ1 and μ2 ...

Question

If $μ_{1}$ and $μ_{2}$ are the refractive indices of the materials of core and cladding of an optical fiber, then the loss of light due to its leakage can be minimised by having

A

μ₁ > μ₂

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B

μ₁ < μ₂

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C

μ₁ = μ₂

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D

None of these

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Solution

The correct option is A μ₁ > μ₂
Losses get minimized when total internal reflection takes place and this will occur in a fiber only if $μ_{1} > μ_{2}$

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