The spectrum of the Sun is:
A) not observable in the visible range
B) a continuous spectrum with no absorption lines
C) an emission spectrum
D) an absorption spectrum
E) a spectrum containing emission and absorption lines but no continuum
Ans: D) an absorption spectrum
You might also like to view...
Mars experiences a sequence of seasons similar to Earth's. Why?
A. Mars's axial tilt is almost the same as Earth's. B. Mars's distance from the Sun is about the same as Earth's. C. Mars has polar ice caps, much like Earth's. D. Mars experiences gravitational forces from its moons, just as Earth does.
What is the lowest rung on the astronomical distance ladder?
A: Hubble Flow B: Using Supernovae C: Cepheid Variable D: the Solar System E: PNLF method
Which of the following is not associated with van der Waals bonds?
(a) Fluctuating- electric dipoles (b) Electron transfer (c) Permanent- electric dipoles (d) Relatively low melting temperature
A metal block has a density of 5000 kg per cubic meter and a volume of 2 cubic meters. What is the block's mass?
A) 1000 kg B) 2500 kg C) 5000 kg D) 10,000 kg E) none of the above