JUST NEED LAST PART WILL ONLY RATE AN ANSWER WILL MATH BACKUP THAT IS CORRECT TO
ID: 2092803 • Letter: J
Question
JUST NEED LAST PART
WILL ONLY RATE AN ANSWER WILL MATH BACKUP THAT IS CORRECT TOO< WILL RATE! I have no idea how to do this one....
Oxygenated hemoglobin absorbs weakly in the red (hence its red color) and strongly in the near infrared, whereas deoxygenated hemoglobin has the opposite absorption. This fact is used in a "pulse oximeter" to measure oxygen saturation in arterial blood. The device clips onto the end of a person's finger and has two light-emitting diodes --a red (665 nm) and an infrared (905 nm)-- and a photocell that detects the amount of light transmitted through the finger at each wavelength.
Red 4.511278e14 Hz is CORRECT ANSWERInfrared 3.31491712e Hz is CORRECT ANSWER
Explanation / Answer
The intensity of an electromagnetic wave isproportional to the square of its amplitude. If 62% of the incidentintensity of the red light is absorbed, then the intensity of theemerging wave will be the amount of light remaining: 100% -62% = 38% of the incident intensity,or If = 0.38 Ii. Hence, we mus thave
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