A 60.0-mW pulsed laser produces a pulse of EM radiation with wavelength 1060 nm (in air) that lasts for 20.0 ps (picoseconds).
(a) In what part of the EM spectrum is this pulse?
(b) How long (incentimetres) is a single pulse in air?
(c) How long is it in water(n = 1.33)?
(d) How many wavelengths fit in one pulse?
(e) What is the total electromagnetic energy in one pulse?