In: Physics
Lab Scenario:
You have a 1 W light bulb in your lab. It puts out light of only 1 frequency. The wavelength of this light is 500nm. you set up a detector with a surface area of 1 square centimeter facing the light source at a distance of 100m
a) Find intensity of light due to your 1 W light bulb at the location of the detector. Answer in micro W/m^2.
b) Find the number of photons hitting the detector every second.
c) What is the maximum E field of the E M wave hitting the detector? Answer in mN/C.
d) What is the maximum value of the B field of this E M wave? Answer in pT.
e) How far away would you have to place the detector to only receive 1 photon per second from the light bulb? Answer in km.