When the angle of refraction is 90 the angle of incidence is called the..., A) Angle of incidence, B) Critical angle, C) Angle of total internal reflection, D) Angle of refraction, 2. For total internal reflection to occur, light must..., A) Travel from a more dense to a less dense medium, B) Travel from a less dense to a more dense medium, 3. When will total internal reflection occur?, A) When light travels from a less dense to a more dense medium, B) When the angle of incidence is smaller than the critical angle, C) When the angle of incidence is greater than the critical angle, D) When the light cannot pass through a medium, 4. When the angle of incidence (i) equals the critical angle (c), if light travels from a denser medium to a less dense medium:, A) Total internal reflection occurs., B) The angle of refraction is equal to 90 degrees., C) Light is refracted out., D) Light travels in a straight line.

10A

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