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Total internal reflection occurs when
  • a)
    Angle of incidence is equal to critical angle
  • b)
    Angle of incidence is greater than critical angle
  • c)
    Total internal reflection doesn’t depend on angle of incidence or critical angle
  • d)
    Angle of incidence is less than critical angle
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Total internal reflection occurs whena)Angle of incidence is equal to ...
Total internal reflection is the phenomenon which occurs when a propagated wave strikes a medium boundary at an angle larger than a particular critical angle with respect to the normal to the surface.The critical angle is the angle of incidence above which the total internal reflection occurs.
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Total internal reflection occurs whena)Angle of incidence is equal to ...
't occur if the angle of incidence is less than the critical angle.

So the correct answer is a) Angle of incidence is equal to critical angle.
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Community Answer
Total internal reflection occurs whena)Angle of incidence is equal to ...
Total Internal Reflection ( TIR ) is the phenomenon which occurs when a propagated wave strikes a medium boundary at an angle larger than a particular critical angle with respect to the normal to the surface. The critical angle is the angle of incidence above which the Total Internal Reflection ( TIR ) occurs.
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Total internal reflection occurs whena)Angle of incidence is equal to critical angleb)Angle of incidence is greater than critical anglec)Total internal reflection doesn’t depend on angle of incidence or critical angled)Angle of incidence is less than critical angleCorrect answer is option 'B'. Can you explain this answer?
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