The wave characteristics of a large,moving object,such as an automobile,are difficult to observe because the
A)energy is not quantized.
B)energy is quantized,but the spacing between energy levels is small.
C)wavelength is very large.
D)wavelength is very small.

Question

Quizplus · Accepted Answer

The wave characteristics of a large, moving object like an automobile are difficult to observe because the wavelength associated with its motion is very small. According to the de Broglie hypothesis, the wavelength ($\lambda$) of a particle is inversely proportional to its momentum (p), where $\lambda = h/p$, and $h$ is Planck's constant. For a large object with significant mass moving at a typical speed, the momentum is large, making the wavelength extremely small and thus difficult to detect or observe in a practical context.

The Wave Characteristics of a Large,moving Object,such as an Automobile,are