If light comes from water (n=1.33) to air (n=1) with incident angle 30° find: 1) Refraction angle in air. 2) Critical angle of total internal reflection. 3) Light velocity in water. (Velocity of light in air=3x10*m/s) 4) What are the conditions of total internal reflection?

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Nature of light

Light is transverse and electromagnetic radiation that exhibits the properties of a wave as well as a particle. For this reason, light is said to have a “dual nature.”