The wavelength of a wave multiplied by the frequency of the wave is the wave's __________
Fill in the blank(s) with correct word
speed
You might also like to view...
How does gravitational lensing tell us about the mass of a galaxy cluster?
A) Using Einstein's general theory of relativity, we can calculate the cluster's mass from the precise way in which it distorts the light of galaxies behind it. B) The lensing allows us to determine the orbital speeds of galaxies in the cluster, so that we can determine the mass of the cluster from the orbital velocity law. C) The lensing broadens spectral lines, and we can use the broadening to "weigh" the cluster. D) Newton's universal law of gravitation predicts how mass can distort light, so we can apply Newton's law to determine the mass of the cluster.
Fermat's principle could be the principle of least distance for
A) reflection. B) refraction. C) both of these D) neither of these
A region where a denser basaltic plate is subducted under a continental one is:
A) the Himalayas. B) the Nazca Trench. C) the Mid-Atlantic Rift. D) Hawaii. E) the San Andreas Fault.
Which of the following statements about Betelgeuse is not true?
A) It is distinctly red in color. B) We now know that it is a very massive star near the end of its life. C) Its Arabic name means "the demon star." D) It is one star of the three stars of the Winter Triangle, along with Procyon and Sirius. E) It is the upper left shoulder star of the constellation Orion.