Which of the following is a FALSE statement?
a. The quantum wavelength of a rifle bullet in flight is not observable since it is much smaller than the bullet itself.
b. The wavelength associated with an electron beam is determined by the electron momentum.
c. The energy of a single photon is proportional to the photon's wavelength.
d. Einstein was awarded the Nobel Prize for his work on the photoelectric effect

The quantum wavelength of a rifle bullet in flight is not observable since it is much larger than the radius of Earth.

Explanation:

This statement is the false statement among the options as the quantum wavelength of a rifle bullet in flight, the uncertainty of the bullet in the bullet position is too small and hence is considered insignificant because of the difficulty in measuring the position, even though it is actually possible to do so.