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the denominator of the formula includes cosine of angle of refraction. If angle of refraction is 90 degrees then the denominator becomes zero and the lateral shift becomes infinity. Now the Question is when will the angle of refraction be 90 degrees? When light travels from denser medium to rarer medium, incidence is at critical angle then your question is possible.

Now, the above argument is for the lateral shift that cannot be determined.

When the angle of incidence is at 900, then the numerator becomes

'cos r' which is equal to the denominator. Hence L = t following the formula and this is the maximum measurable lateral shift

Hope this satisfies your doubt...

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13y ago

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The angle of reflection is equal to the .......?

The angle of incidence


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What is the angle of incidence to the normal incidence?

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What is the size of the angle of incidence and reflection?

The size of the angle of incidence is equal to the size of the angle of reflection. This is known as the law of reflection, where the angle of incidence is measured between the incident ray and the normal, and the angle of reflection is measured between the reflected ray and the normal.


Is there a relationship between lateral displacement and the emergent ray?

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Which angle is the angle of incidence?

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