Gamma rays have a very small
A) energy.
B) frequency.
C) mass.
D) wavelength.
Answer: D
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Astronomy Chapter 5
- Suppose you are listening to a radio station that broadcasts at a frequency of 97 Mhz (megahertz). Which of the following statements is true?
- Which of the following statements is true of green grass?
- Suppose you have a 100-watt light bulb that you leave turned on for one minute. How much energy does it use?
- You observe a distant galaxy. You find that a spectral line of hydrogen that is shifted from its normal location in the visible part of the spectrum into the infrared part of the spectrum. What can you conclude?
- The spectra of most galaxies show redshifts. This means that their spectral lines
- Suppose you want to know the chemical composition of a distant star. Which piece of information is most useful to you?
- According to the laws of thermal radiation, hotter objects emit photons with
- Thermal radiation is defined as
- Suppose you look at a spectrum of visible light by looking through a prism or diffraction grating. How can you decide whether it is an emission line spectrum or an absorption line spectrum?
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.