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  • Stuck here, help me understand: Which of the following is not due to total internal reflection?

Which of the following is not due to total internal reflection?

  • Option 1)

    Working of optical fibre

  • Option 2)

    Difference between apparent and real depth of pond

  • Option 3)

    Mirage on hot summer days

  • Option 4)

    Brilliance of diamond

 

Answers (1)

best_answer

 

Critical angle -

sin c = Refractive index of rarer medium / Refractive index of denser medium

- wherein

When angle of incidence of a travelling from a dence medium to rarer medium is greater than critical angle, no refraction occurs.

 

 optical fibre works on principles of Total Internal Reflection (T.I.R) mirage on hot summer days is effect of T.I.R Brillance of diamond is due to T.I.R. Difference between apparent and real depth of pond is due to refraction 


Option 1)

Working of optical fibre

This is incorrect option 

Option 2)

Difference between apparent and real depth of pond

This is correct option 

Option 3)

Mirage on hot summer days

This is incorrect option 

Option 4)

Brilliance of diamond

This is incorrect option 

Posted by

divya.saini

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