Physics, 25.10.2021 19:40 mtolds1952

Chiếu một tia tới SI lên gương phẳng nằm ngang. Nếu giữ nguyên tia này rồi quay gương đi một góc a quanh trục O nằm trong mặt gương và vuông góc với mặt phẳng tới thì tia phản xạ quay một góc bằng bao nhiêu? Xét hai trường hợp : a) Trục O đi qua điểm tới I
b) Trục O không đi qua điểm tới I

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Chiếu một tia tới SI lên gương phẳng nằm ngang. Nếu giữ nguyên tia này rồi quay gương đi một góc a q...

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