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1. During his PhD research, Richard used lasers with wavelengths of 780nm. a. What type of light was this? | A. RadiowavesE. UltravioletB. MicrowavesF. X-raysC. InfraredG. Gamma raysD. Visible Light b. What was the frequency of this light? c. Due to the small size of laser spots, he measured intensity in units of mW/cm². What is 1mW/cm² in units of W/m²? Show your work. [ 3 pts ] d. His lasers required a current of 5.0mA and 0.40 voltage dropped across them to create light.How much power was used by his lasers? Give your answer in mW. [ 2 pts] e. The circular laser spot had a radius of 0.7 cm. Assuming all the power used by the laser went into the light, what is the intensity of the light, in mW/cm² ? [ 3 pts] f. What is the magnitude of the electric field in his laser? What is the magnitude of the magnetic field? [ 6 pts]

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