Exam 13: The Quantum Universe

If we describe the double- slit experiment entirely in terms of electrons instead of in terms of fields, then which of the following is the best description of what one individual electron does in this experiment?

If Planck's constant were smaller than it actually is, how would the uncertainty principle be affected?

One problem with the planetary model of the atom is that it

One philosophical difference between Newtonian and modern physics is that, unlike modern physics, Newtonian physics

Do quantum uncertainties differ in any essential way from the uncertainty in a coin flip, and why or why not?

Referring to the figure above, the photons of lowest energy are produced by

In quantum theory, a "wave packet"

When an atom undergoes a "quantum jump" into a lower- energy state, the atom

The entanglement experiment described in the textbook demonstrates that

Werner Heisenberg's main contribution to the development of quantum theory was

If two electrons are entangled, then

In the double- slit experiment with electrons, suppose that the observer uses a detector to determine through which slit the electron actually passes. Does this affect the outcome of the experiment, and why or why not?

Referring to the figure above, which quantum jump produces the highest frequency?

What happens to a particle's wave packet when a highly accurate position measurement is performed?

As a particle's uncertainty in position gets smaller, its uncertainty in velocity

A quantum computer built from 4 qubits

In the position- entanglement experiment, one of the two particles impacts at a particular point on one of the screens. Is the other particle affected by this observation, and if so, how?

What happens in the double- slit experiment with electrons if we place an electron detector just behind one of the slits?

In quantum theory, what happens if an electron's wave packet is squeezed into a smaller region of space?

According to quantum theory,