Calculate the wavelength (in nanometer) associated with a proton moving at 1.0 x 103 ms−1 (Mass of proton = 1.67 $\times$ 10-27 kg and h = 6.63 $\times$ 10-34 Js) :

Question

Calculate the wavelength (in nanometer) associated with a proton moving at 1.0 x 10³ ms⁻¹ (Mass of proton = 1.67 $\times$ 10^-27 kg and h = 6.63 $\times$ 10^-34 Js) :

0.40 nm