What is critical angle?...
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- The critical angle is defined as the angle of incidence beyond which rays of light passing through a denser medium to the surface of a less dense medium are no longer refracted but totally reflected.
- It must be noted here that the critical angle is an angle of incidence value. For the water-to-air limit, the critical angle is 48.6 degrees. For the boundary between the glass and crown water, the critical angle is 61.0 degrees.
- The actual value of the critical angle is depending on the combination of materials present on each side of the boundary.
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Explanation:
the angle of incidence beyond which rays of light passing through a denser medium to the surface of a less dense medium are no longer refracted but totally reflected.
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