According to Wikipedia,

**Wave–particle duality** is the concept in quantum mechanics that every particle or quantum entity may be partly described in terms not only of particles, but also of waves.

In physics, the **wavelength** is the **spatial period** of a periodic wave—the distance over which the wave’s shape repeats.

Nickzom Calculator requires two parameters to compute the wavelength of a wave or particle. These parameters are:

- Mass
- Velocity

The formula for computing the wavelength is:

λ = ^{h} / _{mv}

Where:

λ = Wavelength

h = Planck’s Constant (6.63 x 10^{-34} js)

m = Mass

v = Velocity

Let’s solve an example, find the wavelength of a wave – particle with a mass of 300 Kg and a velocity of 3 x 10^{10} m/s.

From the example, we can see that:

m = 300

v = 3 x 10^{10}

λ = ^{6.63 x 10}^{-34} / _{300 (3 x 1010)}

λ = ^{6.63 x 10}^{-34} / _{9 x 1012}

λ = 7.37 x 10^{-47}

Therefore, the wavelength of the wave – particle (λ) is 7.37 x 10^{-47}.