How does the spectrum of a molecule differ from the spectrum of an atom?
A) A molecule does not have spectral lines due to electrons changing energy levels.
B) A molecule has additional spectral lines due to changes in its rotational and vibrational energies.
C) Molecules only have spectral lines at ultraviolet wavelengths.
D) Most atoms only have spectral lines at infrared wavelengths.
E) An atom has a wider range of spectral lines than molecules.
B
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In a single-slit diffraction experiment, the width of the slit is 1.90 ?m. If a beam of light of wavelength 610 nm forms a diffraction pattern, what is the angle associated with the first minimum above the central bright fringe?
A) 9.35° B) 11.4° C) 12.2° D) 39.9° E) 18.7°
On Io, volcanic eruptions, such as those from Prometheus, can send material how far above the surface?
A) 150 km or more B) 2-3 km C) A few meters D) Just far enough to get a surface flow E) Nowhere—volcanoes are not found on moons.
What is the approximate magnification of a compound microscope with objective and eyepiece focal lengths of 0.30 cm and 4.1 cm, respectively, and a separation between lenses of 40 cm?
a. 320 b. 33 c. 32 d. 810 e. 7.1
Nuclear fusion is the source of energy in stars
Indicate whether the statement is true or false