I was just wondering about some of these Physics' questions in past papers. Exams are approaching and I found several questions which aren't in my syllabus... If anyone could help answer them I would appreciate the help...
1. Identify which members of the electromagnetic spectrum might be dangerous and list their dangers.
2. Why would your voice echo more in an empty room than in a room that is carpeted and filled with furniture.
3. Why shouldn't food in aluminium be cooked in microwaves?
4. Why is it important that microwaves ovens don't "leak" microwaves when in use?
5. i) Explain why an image of the bone is formed on a film while using X-Rays?
ii)Why is it possible to see the fracture on the image?
6. State 2 similarities between ultraviolet and visible radiation.
7. Describe one application of ultraviolet radiation.
For anyone who is interested in answering my questions, you don't need to answer them altogether. if you don't know the answers "Let it be". You don't need to answer what you don't know. These questions are to "kill" my curiosity...
Thanks and all help is appreciated
Have a good day!!!
1. Identify which members of the electromagnetic spectrum might be dangerous and list their dangers.
2. Why would your voice echo more in an empty room than in a room that is carpeted and filled with furniture.
3. Why shouldn't food in aluminium be cooked in microwaves?
4. Why is it important that microwaves ovens don't "leak" microwaves when in use?
5. i) Explain why an image of the bone is formed on a film while using X-Rays?
ii)Why is it possible to see the fracture on the image?
6. State 2 similarities between ultraviolet and visible radiation.
7. Describe one application of ultraviolet radiation.
For anyone who is interested in answering my questions, you don't need to answer them altogether. if you don't know the answers "Let it be". You don't need to answer what you don't know. These questions are to "kill" my curiosity...
Thanks and all help is appreciated
Have a good day!!!