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The figure shows a light ray heading towards a glass block at an angle, q. Among p, q, r and s, which one is the critical angle of the glass?
The figure shows a light ray experiencing total internal reflection when moving from water to air. Which of the followings statements is true about this phenomenon?
Which of the phenomena below is related to total internal reflection?
Which of the following optical instruments are functioning on the principle of total internal reflection?
The refractive index of a glass is 1.5. What is the critical angle the glass?