An alpha particle has a mass of 6.6*10-24 g travels at 3.4*107 +/- 0.1*107 mi/h

a. What is the DeBroglie wavelength (in meters)?
b. What is the uncertainty in position?

1 answer

We Know that :
According to debroglies wavelength :
λ = h / mv
= 6.627 x 10 -34 J -s / 6.6 x10-24 x 10-3 kg / 1 g x 3.4x 107 mile / hr x 5 793 638.4 m / s / 1 mile / hr
= 5.09 x 10-22 m