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Physics, 08.04.2020 01:47 kyliegriffis
The photograph shows a shoe with novelty shoelaces. light source The laces are long, flexible plastic strands. Light from the light source passes through the tie laces, illuminating the ends. (a) (i) State what is meant by critical angle. (2)(ii) Show that the refractive index for the plastic used for the laces is about 1.5 speed of light in plastic = 1.97 × 108 m sí
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The photograph shows a shoe with novelty shoelaces. light source The laces are long, flexible plasti...
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