Peak frequency as noted on a radiation curve is directly proportional to the
A) frequency of waves emitted.
B) wavelength of waves emitted.
C) temperature of emitted radiation.
D) temperature of the emitter.
E) none of the above
Answer: D
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A device that makes use of a bimetallic strip is
a. a thermometer. b. a thermostat. c. a choke control in an old automobile. d. all of the above. e. none of the above.
The planets never travel in a straight line as they orbit the Sun. According to Newton's second law of motion, this must mean that
A) the planets are always accelerating. B) the planets have angular momentum. C) the planets will eventually fall into the Sun. D) a force is acting on the planets.
The Moon must be at least _____ years old
A) 4.48 billion B) 5.62 billion C) 6.28 billion D) 7.14 billion
What type of spectrum is produced when a high energy electron beam is incident on a metal target producing X-rays?
A) line spectrum B) emission spectrum C) absorption spectrum D) continuous spectrum E) line spectrum superimposed on a continuous spectrum