Question

1.What is total internal reflection? Explain in what situation you would find it and the formula...

1.What is total internal reflection? Explain in what situation you would find it and the formula involved.

2. A light beam in air is incident on a glass slab with an incident angle of 49o. It is found that the angle of refraction is 21o. What is the index of refraction of the glass slab?

3.What is the law of reflection?

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