Chiều một tia sáng từ không khí tới gặp mặt nước n=1,33 tại I dưới góc tới i. Xác định góc khúc xạ trong hai trường hợp sau a/ i=30*. B/ i=60*

Which of the following behaviors would best describe someone who is listening and paying attention? a) Leaning toward the speaker O b) Interrupting the speaker to share their opinion c) Avoiding eye contact d) Asking questions to make sure they understand what's being said