ph4865816 ph4865816
  • 09-10-2021
  • Physics
contestada

Khi tia tới hợp với pháp tuyến tại điểm một góc i = 30 độ thì tia phản xạ hợp với pháp tuyến tại điểm tới một góc
A. i' = 90 độ B. i' = 45 độ
C. i' = 30 độ D. i' = 60 độ

Respuesta :

ankits48828
ankits48828 ankits48828
  • 09-10-2021

Answer:

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