In optics, what is meant by an "interface?"
a. optically connecting one computer to another
b. using the image created by one lens as the object for another lens
c. when the crest of one wave lines up with the trough of another wave
d. none of the above
d
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The average size of a white dwarf is about the same size as the Earth
Indicate whether the statement is true or false
Harry pulls on the end of a spring attached to a wall. The reaction to Harry's pull on the spring is
A) the wall pulling oppositely on the spring. B) the spring pulling on Harry. C) both the wall and the spring pulling on Harry. D) none of the above
A particle is confined to a one-dimensional box (an infinite well) on the x-axis between x = 0 and x = L. The potential height of the walls of the box is infinite
The normalized wave function of the particle, which is in the ground state, is given by ?(x) = sin , with 0 ? x ? L. What is the probability of finding the particle between x = 0 and x = L/3? A) 0.20 B) 0.22 C) 0.24 D) 0.26 E) 0.28
As a car goes up a hill, there is a force of friction between the road and the tires rolling on the road. The maximum force of friction is equal to:
a. the weight of the car times the coefficient of kinetic friction. b. the normal force of the road times the coefficient of kinetic friction. c. the normal force of the road times the coefficient of static friction. d. zero.