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Physics, 22.07.2021 20:20, emily200705
Khi chiếu một tia SI đập vào gương phẳng cho một tia phản xạ hợp với mặt phẳng gương một góc 30°.Nếu giữ nguyên tia tới và quay gương một góc 10°thì tia phản xạ quay một góc là bao nhiêu?
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Khi chiếu một tia SI đập vào gương phẳng cho một tia phản xạ hợp với mặt phẳng gương một góc 30°.Nếu...
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