Serway_PSE_quick_ch40

Serway_PSE_quick_ch40 - Physics for Scientists and...

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Unformatted text preview: Physics for Scientists and Engineers, 6e Chapter 40 - Introduction to Quantum Physics This figure shows two stars in the constellation Orion. Betelgeuse appears to glow red, while Rigel looks blue in color. Which star has a higher surface temperature? 1 2 3 4 25% 25% 25% 25% 1 2 3 4 5 1. Betelgeuse 2. Rigel 3. They both have the same surface temperature. 4. Impossible to determine. A very hot star will have its peak in the blackbody intensity distribution curve at wavelengths shorter than the visible. As a result, more blue light is emitted than red light. While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an AM radio station, radio waves from an FM radio station, and microwaves from an antenna of a communications system. Rank these types of waves in terms of increasing photon energy, lowest first. 1 2 3 4 25% 25% 25% 25% 1 2 3 4 5 1. sodium light, AM, FM, microwave 2. AM, FM, sodium light, microwave 3. AM, FM, microwave, sodium light 4. microwave, sodium light, AM, FM The order of photon energy will be the same as the order of frequency. See Figure 34.12 for a pictorial representation of electromagnetic radiation in order of frequency. Consider one of the curves shown in this figure....
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Serway_PSE_quick_ch40 - Physics for Scientists and...

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