What is common to all light sources, including incandescent, fluorescent, neon, halogen, laser, and sodium-vapor devices?

Question

Thank You I really appreciate your help! :3

Answer 1

The source of light (electromagnetic radiation of the visual range) is the transitions of electrons in atoms (from the higher to the lower levels)

Answer 2

a 1.0kg(1000g) block of ice at 0.0c is added to a picnic cooler. How much heat will the ice remove as it melts to water at 0.0c

Answer 3

Unit 3 test
1. D
2. B
3. A
4. B
5. A
6. A
7. B
8. B
9. B
10. D
11. C
12. A
13. B
14. A
15. C
16. A
17. Longitudinal
18. Surface
19. Wavelength
20. Destructive
21. Node
22. Decibel
23. C
24. Transverse
25. Black
26. It will bend
27. X-rays for bones..gamma for brain
28. They all use some type of gas

Answer 4

2. Should be all the above
4. Both A and B
13. Should be A
14. Should be D
Just took the test and missed those