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Refraction law:
For a wavefront travelling by a boundary among two media, the first along a refractive index of n1, and the other with one of n, the angle of incidence theta is associated to the angle of refraction phi by
n1 sin theta = n2 sin phi.
WHat is torque
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Length contraction
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what will happen when a ball is dropped in a hole passing through the centre of earth through out diametrically?
how can i make project on human eye and its defects?
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