1. What is the main theme of the article "Periscope"? | ![]() |
2. How does a periscope function, and what are its uses? | ![]() |
3. Why is it essential for students to learn about tools like a periscope? | ![]() |
4. What are some practical applications of periscopes in modern technology? | ![]() |
5. How can students make their own simple periscope at home? | ![]() |