Which one has the largest wavelength, Laurel or Hardy?
(The two are walking side by side with the same speed)
Laurel:
$\lambda_1$ $=$ $\frac{h}{m_1v}$
Hardy:
$\lambda_2$ $=$ $\frac{h}{m_2v}$
From $m_2$ $\gt$ $m_1$,
it follows:
$\lambda_2$ $\lt$ $ \lambda_1$
Laurel has the largest wavelength.
