when a light incident on mediam at an angle of incidence i and refracted in to a second medium at an angle of refraction r the graph of sin i qnd sin r is shown in the figure, then the critical angle for the two media is
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A ray of light is incident on a medium with angle of incidence i and refracted into a second medium with angle of refraction r. ... Then, the velocity of light in the first medium in n times the velocity of light in the second medium
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