As the speed of an object increases, its wavelength
A) remains unchanged.
B) decreases.
C) increases.
D) is zero.

Question

Quizplus · Accepted Answer

As the speed of an object increases, according to the de Broglie equation ($\lambda = \frac{h}{mv}$), where $\lambda$ is the wavelength, $h$ is Planck's constant, $m$ is the mass, and $v$ is the velocity, the wavelength ($\lambda$) decreases because the velocity ($v$) is in the denominator.

As the Speed of an Object Increases, Its Wavelength