What is braille system? also find state the lows of reflection. please give right answer
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Braille is a system of reading and writing by touch used by the blind. It consists of arrangements of dots which make up letters of the alphabet, numbers, and punctuation marks. ... Capitalization is accomplished by placing a dot 6 in the cell just before the letter that is capitalized.
The law of reflection states that the angle of reflection equals the angle of incidence—θr = θi. The angles are measured relative to the perpendicular to the surface at the point where the ray strikes the surface.
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