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Secondaire 5 • 20 mars 2025

Are my drawing correct? Just to be sure i get the idea. Thanks.

Explication (1)

Explication d’élève

20 mars 2025

Hi PeacefulPumpkin8091 😁 Thanks for your question! You're almost there! You have to correct your third scheme. To have a situation of total internal reflection, you need to satisfied this condition : the index of refraction of the first medium, water, is higher than the index of refraction of the second medium, air.

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I let you the conceptsheet on this notion here.

Also, your first and second schemes need to be a bit modified. The angle of the refracted ray need to be higher than the incident ray, because you initially are in a more refractive medium.

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See it there.

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