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Q. A boulder has 300 J of potential energy sitting on the edge of a cliff. What is the boulder's kinetic energy as it hits the ground?

Q. A ray of light traveling in air strikes the mid- point of one face of an equiangular glass prism (n = 1.37) at an angle of exactly 30.0. Trace the path of the light ray through the glass and find the angle of incidence of the ray at the bottom of the prism.

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Category:- Physics
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