1. The problem statement, all variables and given/known data Laser can now be designed to emit pulses of light smaller than 30 microns wide in their direction of motion. (a) Estimate the uncertainty in the momentum of a photon in such a pulse. (b) The momentum of a photon is p=h/λ. Estimate the uncertainty in the wavelength of a photon in the pulse, assuming a nominal wavelength of 800 nm. 2. Relevant equations ΔxΔp ≥ h/4π, p = h/λ h being Planck's constant of 6.626 * 10-34 J*s 3. The attempt at a solution My confusion with this problem stems from the fact that I'm not sure if Δx = 30*10-6m If that is the case, then I did Δp ≥ h/4π*Δx. Part a: Δp ≥ 1.757 * 10-30 kg*m/s For part b, I then took the Δp value of 1.757 * 10-30 kg*m/s and plugged it into p = h/λ. I then got λ = 0.000377 m. Is this the right method?