If angle of incedence is 90degree then what is the angle of refraction

1.	If angle of incedence is 90degree then what is the angle of refraction
Answer» 90 degrees becoz i=r 90 The answer is 90 degreeBecause i=r If it is giving you irritation then please add to your question that "don\'t reply with betternation.xyz " Join betternation.xyz This is a site where u can have a lot of friends and fun ? ? ?

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