Question 1
The wave characteristics of a large, moving object, such as an automobile, are difficult to observe because the
◦ wavelength is very small.
◦ wavelength is very large.
◦ energy is not quantized.
◦ energy is quantized, but the spacing between energy levels is small.
Question 2
From the following list of observations, choose the one that most clearly supports the following conclusion by de Broglie: "Electrons have wave properties."
◦ The photoelectric effect
◦ Line emission spectrum of hydrogen
◦ Xray diffraction
◦ Sodium chloride produces sodium solid and chlorine gas