Physics - Geometrical Optics Question with Solution | TestHub
PhysicsGeometrical OpticsTIR/Prism and DispersionMedium2 minPYQ_2015
PhysicsMediumsingle choice
Assertion : In optical fibre, the diameter of the core is kept small. Reason : The smaller diameter of the core ensures that the fibres should have incident angle more than the critical angle required for total internal reflection.
Options:
Answer:
C
Solution:
Diameter of a single mode optical fibre lies between 8 to Critical angle for total internal reflection does not depend on width of media.
Stream:AIIMSSubject:PhysicsTopic:Geometrical OpticsSubtopic:TIR/Prism and Dispersion
⏱ 2mℹ️ Source: PYQ_2015
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