Use thefoiiowing information to answer the next three questions. One type of breathalyzer involves illuminating a photocell (photoelectric surface) with infrared (IR) radiation of wavelength 9.50 x 10'6 m. Alcohol molecules absorb infrared radiation. A breathalyzer circuit is illustrated below. Ammeter The ammeter in the breathalyzer is calibrated to register a maximum reading with no alcohol sample between the detector and the IR source. 29. A breath sample containing alcohol is introduced into the analyzer. If it absorbs 50% of the radiation emitted by the infrared source, the current in the ammeter will be A. halved B . doubled C. the same D. quartered Numerical Response A current of 4.71 x 10'3 A passes through the ammeter for 30.2 s. The number of electrons that pass through the ammeter in that time, expressed in scientific notation, is (1.1! x 10\". The values of a, b, c, and d are (Record your answer as EEEE] .) Numerical Response The energy of a photon of infrared radiation from this source, expressed in scientific notation, is b x 10"\" J. The value of b is (Round and record your answer to three digits.)