Spectroscopy Worksheet - Answers
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1. The sky is blue...
*Sun's rays enter E's atmosphere
*Light is scattered (diffraction)
*Longer waves of light (red, orange, yellow - ESRT) move straight through
*Shorter waves of light (blue) get absorbed by gas molecules (Hence sky appears blue in color)
2. How does a magnifying glass work?
*made of glass
*1 side is like a bubble (convex)
*other side is shaped inward like a "dent" (concave)
*As light enters glass, the shape of glass bends the light (refraction)
*Image appears larger
3. What can astronomers learn about stars from their spectra (spectroscopy)?
** a star's chemical composition and temperature
4. How is a dark line spectra produced?
*light passes through cold gas
*photons of lower, less excited atomic states in the gas jump up to higher lying energy levels producing a dark line spectrum
5. How does the width of the visible spectrum compare to that of the entire electromagnetic spectrum?
**the width of the visible spectrum is the smallest compared to the other forms of the electromagnetic spectrum