Recent content by 200physics

So going through the process, E = (6.626*10^-34) * (3.0 x 10^8 / 5.40 x 10^-7) = 3.68 * 10^-19 Then taking 1% of it = 3.68 x 10^-21 Then plugging it into Δt = h / 2*Pi*3.68 x 10^-21 = 2.86 x 10^-14 I tried this and it was marked wrong, could my units be off or am I again using the wrong...

Homework Statement A laser produces light of wavelength 540 nm in an ultrashort pulse. What is the minimum duration of the pulse if the minimum uncertainty in the energy of the photons is 1.0%? Homework Equations ΔEΔt ≥ hbar / 2 The Attempt at a Solution Now I tried a couple ways...