120 20 Feeling 102 100 99% 104 80 0.2 95%. 106 60 0% 2x102 108 40 75% 2x10 1% 50% 10-10 20 5% 2x104 10% 25% 10-12 2x105 20 50 100 200 500 1000 2000 5000 10,000 Frequency (Hz) What is meant by a. threshold of hearing and b. threshold of pain Use the graph to obtain the threshold of hearing. At what distance from an isotropic 10 µW acoustic source is the sound at the audibility threshold for a human? 3. і. Diagram shows the schematic for Emsley's eye. Use the data from the diagram to find out the fraction of light roflect Intensity level (W/m?) Intensity level (dB SPL) 2. Pressure level (Pa)
120 20 Feeling 102 100 99% 104 80 0.2 95%. 106 60 0% 2x102 108 40 75% 2x10 1% 50% 10-10 20 5% 2x104 10% 25% 10-12 2x105 20 50 100 200 500 1000 2000 5000 10,000 Frequency (Hz) What is meant by a. threshold of hearing and b. threshold of pain Use the graph to obtain the threshold of hearing. At what distance from an isotropic 10 µW acoustic source is the sound at the audibility threshold for a human? 3. і. Diagram shows the schematic for Emsley's eye. Use the data from the diagram to find out the fraction of light roflect Intensity level (W/m?) Intensity level (dB SPL) 2. Pressure level (Pa)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:120
20
Feeling
102
100
99%
2
104
80
0.2
95%
10
60
2x102
108
40
75%
2x103
1%
50%
10-10
20
5%
2x104
10%
25%
10-12
2x10-5
20
50 100 200 500 1000 2000 5000 10,000
Frequency (Hz)
What is meant by
a. threshold of hearing and
b. threshold of pain
Use the graph to obtain the threshold of hearing.
At what distance from an isotropic 10 µW acoustic source is the sound at the audibility threshold for a
human?
3. i.
Diagram shows the schematic for Emsley's eye. Use the data from the diagram to find out the
fraction of light reflected at air -cornea interface
Intensity level (W/m?)
Intensity level (dB SPL)
Pressure level (Pa)
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