Wave Particle Duality

(1) De-Broglie Wavelength
$$λ = {h}/{mv} = h/p$$
where, p = momentum

(2) De-Broglie Wavelength in terms of Kinetic Energy
$$ λ=h/{√{2mE}} $$

(3) De-Broglie Wavelength of an electron
$$λ={12.26}/{√V}$$
V = Electric potential

(4) $ v_p = w/k = c^2/v $

(5) Heisenberg’s uncertainty principle:
$Δx . Δp_x >= h/{2π}$

(6) Heisenberg’s relation to pair of variables energy and time:
$ΔE . Δt >= h/{2π}$