A fringe shift occurs for every ________ wavelength movement of the adjustable mirror in a Michelson interferometer
a. whole
b. half
c. quarter
d. eighth
c
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The figure shows an LR circuit with a switch and a 240-volt battery. At the instant the switch is closed the current in the circuit and the potential difference between points a and b, Vab, are
a. 0 A, 0 V
b. 0 A, ?240 V
c. 0 A, +240 V
d. 0.024 A, 0 V
e. 0.024 A, +240 V
If the interaction of a particle with its environment restricts the particle to a finite region of space, the result is the quantization of ____ of the particle
a. the momentum b. the energy c. the velocity d. all of the above properties e. only properties (a) and (b)
To find an image by ray tracing requires
A) four rays. B) two rays. C) eight rays. D) three rays. E) only one ray.
Which term in the simplified Drake equations depends on sociological factors?
A) NHP B) flife C) fciv D) fnow