Exam #2 Review for HOU By Dr. J I.Electromagnetic Spectrum & Spectroscopy 1. If you wanted to observe a molecular cloud, in what wavelength of light would you most likely observe? a) UVb) Visiblec) X-rayd) Infrared
2. When white light passes through a cool cloud of gas, we see
3. If given the wavelength of green light to be 532 nm, what is the frequency of the green light?
4. If you analyze the light from a low density object (such as a cloud of interstellar gas), which type of spectrum do you see?
5. Imagine that you observe the Sun while in your space ship far above Earth’s atmosphere. Which of the following spectra would you observe by analyzing the sunlight? a) dark line absorption spectrum b) bright line emission spectrum c) continuous spectrum
6. Imagine that you are on the surface of Earth (below the atmosphere) and are observing the Sun. Which of the following spectra would you observe by analyzing the sunlight?
7. If you heat a gas so that collisions are continually bumping electrons to higher energy levels when the electrons fall back to lower energy levels the gas produces
