1. Different Types of Spectrums

2. Types of Spectrums Continuous Spectrum Emission Spectrum Absorption Spectrum All colors of the spectrum Are shown (some occupy a smaller Space on the spectrum) Only the wavelengths emitted (given off) are visible All wavelengths of color are seen Only the ones emitted from the light Source are missing (absorbed by gases)

3. Different spectral lines (“fingerprints”) Of various elements

4. Fluorescent light spectrum Low pressure sodium streetlight Examples of Spectral lines for various Light sources

5. What does it mean that every element has a “fingerprint” ? Only helium emits this particular Combination of wavelengths Example of the spectral lines of Hydrogen shown in both Absorption and Emission spectrums

6. What type of spectrum are these? Our Sun A light bulb Is there any similarity to these two spectrums?

7. Using this calculation we can determine the Temperature of distance stars by using wavelength and frequency

8. This Law calculates the amount of energy a star radiates (Luminosity = energy