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1)if angle of incidence is 56 and it is decreased by 15 dagree then draw the path of a ray by drawing a diagram by using exact value of angle of incidence and angle of refractive index of glass is 1.5.
2)name the phenomenon of light which u observe above.

  • physics -

    In your question, it is not clear which angle is being decreased by 15 degrees. If they want you to calculate the angle of refraction for 56-15 = 41 degree incidence, then use Snell's law for the new angle of refraction.

    We cannot draw figures for you. You will have to do that yourself.

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