Each Concept Question worth is 5 points per question for a 70 point MINIMUM. Cha
ID: 304944 • Letter: E
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Each Concept Question worth is 5 points per question for a 70 point MINIMUM. Chance to earn EXTRA CREDIT by attempting additional questions bevond the minimum! CHAPTER5 To receive ANY credit for this section, you MUST attempt at least 3 questions (15 points) in this section! 1) All forms of light consist of moving through space at the speed of 300,000 km/sec. A. Oscillating massive particles B. Oscillating electric and magnetic fields C. Oscillating sound waves D. Oscillating gravity fields E. Oscillating electrons 2) Which of the following statements about X rays and radio waves is NOT true? A. X rays have shorter wavelengths than radio waves. B. X rays and radio waves are both forms of light, or electromagnetic radiation. C. X rays have higher frequency than radio waves D. X rays have higher energy than radio waves. E. X rays travel through space faster than radio waves. 3) The image below is an example of a typical stellar spectrum and is called a/an A. Cherenkov spectrum B. Continuous spectrum C. Emission spectrumm D. Absorption spectrum E. Degenerate spectrum Cedar Valley CollegeExplanation / Answer
1) B.
oscillating electric and magnetic fields.
The light is traveling with the speed of 300000000 m/s
It is the one form which is differ from ultraviolet light and infrared light.
The monochromatic light is also the one form of light.
From very famous equation, E=mc2 we can say that light is directly proportional to the energy.
2) E is not true.
Because radio waves travel faster in space than x rays.
Both of these waves are eloctromagnetic waves and hence both travel with the speed of 300000000 m/s.
3) D.
Absorption spectrum
The stellar spectrum is occured in to the stars.
This is occured due to the the temperature variation in the stars.
As interior of stars is made up of iron and and it is hot. But the outer part of the stars are cold hence when the light passes through the colder part, the dark patches occured on the spectrum.
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