user-avatar
vn25916
2 năm trước
Cho 1 thấu kính có tiêu cự 50cm. Đặt vật AB cao 1cm vuông góc với trục chính thấu kính (A thuộc trục chính) Cách thấu kính đoạn d a Tính độ tụ thấu kính b d = 60cm xác định vị trí tính chất ,độ lớn ảnh A'B'
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Writing 1 A plane crashed into the sea yesterday. It was carrying 120 passengers. (Using relative pronoun) ………......................................................................................................................................................... 2 The woman teaches me English. You are listening to her. (Using relative pronoun with preposition) ………......................................................................................................................................................... 3. Mr Jones was very generous about overtime payments. I was working for him. (Using relative pronoun with preposition) ………......................................................................................................................................................... 4. Mr Smith said he was too busy to speak to me. I had come specially to see him. (Using relative pronoun) ………......................................................................................................................................................... 5. The Roman coins are now on display in the National Museum. A local farmer came across them in a field. (Using relative pronoun)

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team