Calculate the wavelength (in nanometer) associated with a proton moving at 1.0 × 103 ms−1

Q. Calculate the wavelength (in nanometer) associated with a proton moving at 1.0 × 103 ms−1

(Mass of proton = 1.67 × 10−27 kg and h = 6.63 × 10−34 Js )

A. 0.032 nm

B. 0.40 nm

C. 2.5 nm

D. 14.0 nm

Answer: 0.40 nm