KIỂM TRA 11CB
Thời gian 15 phút
Môn: VẬT LÍ
Câu 1: Thế nào là hiện tượng khúc xạ ánh sáng ? Phát biểu định luật khúc xạ ánh ánh.
Câu 2: Tia sáng đi từ thủy tinh có chiết suất n1 =
a.
b.
c.
d.
3
4
sang nước có chiết suất n2 = . Tính:
2
3
Góc khúc xạ nếu góc tới 00
Góc khúc xạ nếu góc tới 300
Góc khúc xạ nếu góc tới 700
Góc lệch giữa tia khúc xạ và tia tới ( với góc tới 300 ).
BÀI LÀM:
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