Hãy Xác định góc giới hạn phản xạ toàn phần khi chiếu tia sáng tới từ kim cương có chiến suất 2.42 qua các môi trường: a không khí (nkk=1) b. nước(Nnc= 1.33) c thủy tinh(N\pi=1.42)

Efficiency is an action of doing something. for example when you take a test. good efficiency means you did well but bad effeciency or no effiency means you did bad.

Iread this book last year so take this with a grain of salt.gene jumps from the tree to compete with finny due to the fact that gene is always trying to do better than finny. he is put under the grasp of peer pressure due to finny almost forcing him to do this. ever since he first jumped finny kept pressuring him to jump since he thought gene enjoyed jumping.rather than uses this answer you should probably just reread chapters 3-4