The amount of energy needed to move an electron from a lower energy level to a higher energy level is the ____
a. energy of the higher level
b. energy of the lower level
c. difference in energy between the two levels
d. product of the energies of the two levels
e. binding energy
c
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Consider the equipotential diagram shown in problem E3T.12. In the expression 
, what is the approximate value of b?
A. 8
B. 2
C. 0
D. 1/2
E. 1/8
F. Some other value (specify)
The position x of an object varies with time t. For which of the following equations relating x and t is the motion of the object simple harmonic motion? (There may be more than one correct choice.)
A) x = 5 sin23t B) x = 8 cos 3t C) x = 4 tan 2t D) x = 5 sin 3t E) x = 2 cos(3t - 1)
A multiple-slit diffraction grating has a slit separation of 1.75 × 10^?6 m. Find the wavelength of the monochromatic light that will have its second-order bright fringe diffracted through an angle of 36.0°. (1 nm = 10?9 m)
a. 389 nm b. 868 nm c. 514 nm d. 343 nm e. 257 nm
The rate at which work is done is equivalent to which of the following?
a. increase in potential energy b. thermal energy c. potential energy d. power