Which part of the electromagnetic spectrum generally gives us our best views of stars forming in dusty clouds?
A) infrared B) ultraviolet C) visible light D) blue light
A
You might also like to view...
The Michelson-Morley experiment
A. proved that there is no luminiferous ether B. proved that there is a luminiferous ether C. showed that a medium is necessary for the transmission of light
The magnetic field of an electromagnetic wave has a peak value of 5.0 × 10-10 T. What is the intensity of the wave?
A) 1.0 × 10-13 W/m2 B) 1.5 × 10-5 W/m2 C) 3.0 × 10-5 W/m2 D) 2.0 × 10-13 W/m2 E) 7.5 × 105 W/m2
For a point mass equal to that of the Sun, how far does the Schwarzschild radius extend from its center?
a. A few kilometers away b. A few solar radii away c. A few astronomical units (AU) away d. A few parsecs away
Which of the following statements would explain the fact that larger molecules, such as amino acids, do not produce spectral lines in the OBAFGKM classification?
A. Larger molecules break apart at the high temperatures of stellar atmospheres. B. The spectra of larger molecules are too complicated. C. Larger molecules require higher temperatures to show absorption lines. D. The spectra of hydrogen and helium are sufficient to classify stars. E. All of these choices are correct.