Define and explain total internal reflection with diagram??
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Total internal reflection, in physics, complete reflection of a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. The phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle.
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1. A Ray of light must approach and interface from the denser medium.
2. The angle of incidence in the denser medium must be greater than the critical angle of incidence for the pair of mediums.
Explanation:
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