October 2021 1 36 Report

Луч света падает на плоское зеркало. Угол между падающим и отраженным лучами равен 30гр. Угол между отраженным лучом и зеркалом равен

 

1) 75 гр.

2) 115 гр.

3) 30 гр.

4) 15 гр.

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