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nguyenvananh1996vp
2 năm trước
Cho điểm sáng S, mặt phân cách tại I. Vẽ tia sáng chiếu từ không khí vào nước? Khi đặt mắt trong không khí để quan sát một vật ở đáy bể ta sẽ nhìn thấy vật ở dưới nước bị lệch sang trái gần mắt hơn xa mắt hơn bị lệch sang phả
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