How are wavelength, frequency, and energy related for photons of light?
A) Longer wavelength means higher frequency and lower energy.
B) Longer wavelength means lower frequency and lower energy.
C) Longer wavelength means lower frequency and higher energy.
D) Longer wavelength means higher frequency and higher energy.
E) There is no simple relationship because different photons travel at different speeds.
B
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Simple Harmonic Motion: The figure shows a graph of the position x as a function of time t for a system undergoing simple harmonic motion. Which one of the following graphs represents the velocity of this system as a function of time?
A. graph a B. graph b C. graph c D. graph d
A major advantage of a Newtonian reflector over a refractor is:
A) its compact size. B) the elimination of chromatic aberration. C) there are only two lenses to grind. D) the central hole in the mirror is smaller. E) the elimination of the secondary mirror.
When you toss a ball upward, after the ball leaves your hand
A) the force of your hand moves it up and gradually changes direction. B) the upward force changes direction at the top of the path. C) we see that force and velocity are essentially the same thing. D) none of the above
A typical supercluster contains no more than about 10,000 stars
Indicate whether the statement is true or false