Which one of the following is the correct order of the electromagnetic spectrum from low to high frequencies?
A) radio waves, infrared, microwaves, UV, visible, X-rays, gamma rays
B) radio waves, UV, X-rays, microwaves, infrared, visible, gamma rays
C) radio waves, microwaves, infrared, visible, UV, X-rays, gamma rays
D) radio waves, microwaves, visible, X-rays, infrared, UV, gamma rays
E) radio waves, infrared, X-rays, microwaves, UV, visible, gamma rays
C
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The resolving power of a telescope is
a. a measure of the minimum angular separation that can be seen with the telescope. b. a measure of the maximum angular separation that can be seen with the telescope. c. a measure of the amount of light that the telescope can gather in one second. d. the separation between the objective and the image. e. a measure of how blurry object appear in the telescope.
Increasing the brightness of a beam of light without changing its color will increase
A) the number of photons per second traveling in the beam. B) the energy of each photon. C) the speed of the photons. D) the frequency of the light. E) the wavelength of the photons.
The symbol for copper is
a. C. b. Co. c. Cr. d. Cu.
If global warming were to occur over the next century, it is likely that some polar ice would melt, causing more water to be distributed evenly all over the Earth. What would happen to the length of the day as a result of this?
1.It would increase. 2.It would decrease. 3.Nothing, it would stay the same. 4.It is impossible to tell.