EMISSION AND ABSORBTION SPECTRA QUESTIONS AND ANSWERS Emission and absorption spectra are fundamental concepts in the field of spectroscopy, shedding light on the interactions between matter and electromagnetic radiation. From deciphering the composition of distant stars to understanding the behavior of atoms and molecules in our laboratories, these spectra offer invaluable insights. In this Page, we’ll delve into some common questions about emission and absorption spectra to demystify these intriguing phenomena.

1. What is the approximate wavelength range of visible light? (2)
2. Name five wavelength ranges and their uses. (5)
3. How can a scientist tell what elements are present on a star? (3)
4. What is the approximate wavelength of red light? And violet? (2)
5. What does the wavelength of UV tell you about its energy levels? (2)
6. Does microwave radiation or gamma radiation have more energy per photon? (1)
7. Give one example of a colour in fireworks achieved through emission spectra. (1)
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