Rabiya and her group mates are trying to interpret the graph given below during one of their skills sessions. They had previously looked at graphs that showed absorbance plotted over different wavelengths. However, the graph below shows reflectance data (% of light reflected) measured by a STS-VIS spectrophotometer from 400 to 800nm using a regular light source. The average data from white leaves is represented by the dashed red line and average data from green leaves is represented by the solid black line. Obviously, the white leaves do not have the same amount of chlorophyll as green leaves. Note the wavelengths for each color: blue (400-490 nm), green (500-570 nm) and red (640-700 nm). a 50 40 30 20 10 400 500 600 700 800 Wavelenght (nm) What can be inferred correctly from the reflectance spectrum shown above? O A. White leaves show higher reflectance of green light than green leaves. O B. Green leaves with chlorophyll reflect more light at 500-570nm. O C. There are no peaks so no valid inferences can be made. O D. The absorbance is mostly uniform under blue light. Reflectance (%)
Rabiya and her group mates are trying to interpret the graph given below during one of their skills sessions. They had previously looked at graphs that showed absorbance plotted over different wavelengths. However, the graph below shows reflectance data (% of light reflected) measured by a STS-VIS spectrophotometer from 400 to 800nm using a regular light source. The average data from white leaves is represented by the dashed red line and average data from green leaves is represented by the solid black line. Obviously, the white leaves do not have the same amount of chlorophyll as green leaves. Note the wavelengths for each color: blue (400-490 nm), green (500-570 nm) and red (640-700 nm). a 50 40 30 20 10 400 500 600 700 800 Wavelenght (nm) What can be inferred correctly from the reflectance spectrum shown above? O A. White leaves show higher reflectance of green light than green leaves. O B. Green leaves with chlorophyll reflect more light at 500-570nm. O C. There are no peaks so no valid inferences can be made. O D. The absorbance is mostly uniform under blue light. Reflectance (%)
Biomedical Instrumentation Systems
1st Edition
ISBN:9781133478294
Author:Chatterjee
Publisher:Chatterjee
Chapter16: Fiber Optics And Lasers In Bioinstrumentation
Section: Chapter Questions
Problem 6P
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Transcribed Image Text:Rabiya and her group mates are trying to interpret the graph given below during one of their skills sessions. They had previously looked at graphs that showed absorbance
plotted over different wavelengths. However, the graph below shows reflectance data (% of light reflected) measured by a STS-VIS spectrophotometer from 400 to 800nm using
a regular light source. The average data from white leaves is represented by the dashed red line and average data from green leaves is represented by the solid black line.
Obviously, the white leaves do not have the same amount of chlorophyll as green leaves. Note the wavelengths for each color: blue (400-490 nm), green (500-570 nm) and red
(640-700 nm).
50
40
10
400
500
600
700
800
Wavelenght (nm)
What can be inferred correctly from the reflectance spectrum shown above?
O A. White leaves show higher reflectance of green light than green leaves.
O B. Green leaves with chlorophyll reflect more light at 500-570nm.
O C. There are no peaks so no valid inferences can be made.
O D. The absorbance is mostly uniform under blue light.
(%) aouejpayo
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