Assume the mostly infrared radiation from a heat lamp acts like a continuous wave with wavelength 1.50 µm.
(a) If the lamp's 185 W output is focused on a person's shoulder, over a circular area 25.0 cm in diameter, what is the intensity?
kW/m2
(b) What is the peak electric field strength?
kV/m
(c) Find the peak magnetic field strength.
µT
(d) How long will it take to increase the temperature of the 4.00 kg shoulder by 2.00°C, assuming no other heat transfer and given its specific heat is 0.830 kcal/kg·°C?
s