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All weath per sentencewhat is the answer​

Answer»

Answer:

CRITICAL ANGLE IS 90 DEGREE..!! OK

SO WHY GOOGLE SAYS THAT CRITICAL ANGLE FOR MOST GLASS IS 42 DEGREE..??

I MEAN IF IT IS 90 DEGREE SO WHY GOOGLE'S SAY IT IS 42 DEGREE FOE MOST GLASS??

WHAT IT MEAN BY GOOGLE



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