Suppose we have an equilateral prism. Now, if the prism is filled with water, then the deviation of the light would depend on which of these - refractive index of water or that of glass (of which prism is made up of), according to the formula:

Deviation = Angle of the prism * (refractive index of the prism - 1)

Here, the angle of the prism would be 60 degrees.

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Solution

the deviation of the light would depend on which of these - refractive index of water.

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