Write the equation for the de-Broglie wavelength of a particle having momentum $(p)$.

(N/A) The de-Broglie wavelength $(\lambda)$ of a particle is inversely proportional to its momentum $(p)$.
The relationship is given by the de-Broglie equation:
$\lambda = \frac{h}{p}$
where:
$\lambda$ is the de-Broglie wavelength,
$h$ is Planck's constant $(6.626 \times 10^{-34} \ J \cdot s)$,
$p$ is the momentum of the particle.