When we say that an electromagnetic field is "quantized," we mean that
A) whenever it interacts with atoms, it must deposit an entire "quantum" of energy at each interaction.
B) its energy is "digitized" to have either 0, 1, 2, 3, etc. units of a basic energy increment.
C) it impacts a viewing screen as tiny bundles of radiation.
D) All of the above.
E) None of the above.
B
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The energy required to excite a(n) _________energy electron to the energy of free space is called the work function.
Fill in the blank(s) with the appropriate word(s).
More massive stars are _________ luminous and __________ than less massive stars, thus they pulsate _____________
a. less, smaller, faster b. more, larger, slower c. more, larger, slower d. less, smaller, faster
Because of absorption, a Polaroid will actually transmit 40% of incident unpolarized light. Two such Polaroids with their axes aligned will transmit
A) 0%. B) 40%. C) 100%. D) between 0% and 40%. E) between 40% and 100%.
Including relativistic effects, doubling the speed of a object:
a. doubles its momentum. b. more than doubles its momentum. c. less than doubles its momentum. d. has no effect on its momentum.